Did You Know?

When Lex falls through the ceiling, she is screaming but her mouth isn't moving.
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As Hammond was hearing the shotgun fire through the telephone, we can hear that what was firing was like a pistol the bangs and the rate of fire. Shotguns usually have a slower rate of fire and sound far more louder than a pistol, and when the shot goes to the glass behind the "ride" it looked like holes from 9mm pistol rounds instead of .12 guage shotgun rounds.
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When Ray Arnold uses the UNIX command prompt to access the park's security system his spoken commands do not match his typed commands. For example the first typed command is "access security" and the first spoken command is "access main program." None of his spoken commands match the commands entered in the prompt.
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In the embryo freezing chamber, Tyrannosaurus Rex is spelled with only one "n" instead of two. Also, Stegosaurus is spelled "Stegasaurus".
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As Dr. Grant lectures the cynical boy at the dig site about the velociraptor, he says that the velociraptor's claw was used to eviscerate and tear its victims apart, as opposed to going for the neck like many of today's predators. The fossilized remains of a velociraptor caught in a feud with its prey clearly show the velociraptor stabbing the prey in the neck with its claw. The Truth About Killer Dinosaurs also conducted an experiment to see if the claw could eviscerate flesh. It couldn't.
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The command prompt used by Ray Arnold while attempting to access security settings appears to have correctly started in normal user mode, as the prompt symbol is simply a ">" character. He would have to enable superuser mode, often indicated by a "#" symbol, to access important system information such as security settings. Perhaps the enable command was "please."
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At the beginning, when the group is walking up to the front door of the visitor's center, the stone top of the entrance exceeds the bottom of the roof, but in the subsequent close up shot, the stone entrance is smaller, with sheets of grass/straw behind it.
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During the helicopter flight, Malcolm is sitting opposite Hammond, next to the door Hammond is the first to get off the helicopter, followed by Grant, Sattler, and Gennaro, but Malcolm disappears from his seat next to the door.
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When Tim looks through the windshield with the goggles, Lex is looking in his direction. When the shot switches to the outside, she is looking elsewhere.
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When Dennis is taking the embryos in the shaving cream can, the can changes between red and blue and then back again when it is being covered in the mud.
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When Dennis crashes the Jeep in the Dilophasaurous section of the island, the Jeep gets stuck on a tree branch. Dennis ties a cable to a tree to free the Jeep from the tree branch. The cable is clearly seen sitting straight. When Dennis is face to face with the lizard in front of the Jeep, the cable is somehow gone. And it stays like this throughout the whole scene.
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The scene in the trailer Hammond is drying the glass with a towel in one shot and in the next the towel is a complete new one evident by the change in color.
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At the beginning, when we first meet Dennis Nedry at the outdoor cafés in San Jose, he is talking to Dodgson and wiping his fingers with a napkin, and his fingers change positions from one shot to the next.
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After Dennis Nedry pulls out the cable on the front of the jeep, he slips and falls down the hill with water rushing down all around him. In the next shot, there is hardly any water around him.
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In the very end of the movie, when they are all in the plane headed home, Lex is seen sleeping on Dr. Grant. Her head position changes several times between shots.
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When the two grandchildren are in the jeep and the T-Rex smashes down on the plexiglass roof, a large section breaks where Tim is holding it up. When the camera switches positions, the glass is whole again.
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When Ellie enters the cafeteria where Hammond is eating ice cream the ceiling fans are working despite the power being out.
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When Nedry gets out of the Jeep to open the gate, he leaves the door open, but when he comes back, it is shut.
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When Grant, Sattler, Lex, and Tim are running from the Visitor's Center at the end, the mud pattern on the door of the jeep is different from the pattern that is seen right before the group boards the helicopter to leave the island.
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We see John Hammond picking pieces of egg shell off from the hatching egg, but in a subsequent shot, there are two pieces lying down that weren't there before.
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After the two raptors hear the soup ladle fall on the floor, Lex is shown crawling to go to the other side of the kitchen, and Tim is briefly shown following behind. But in the next shot, Tim is just then starting to crawl to the other side of the cabinet.
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The undamaged East Dock sign on road below Nedry's truck crash points up, then left.
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When the car falls into the tree, each shot shows the lights on top of the car pointing in different directions.
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Tim stops climbing down the fence when the green light starts to flash, but in background shots later he can still be seen climbing.
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When chased by the Raptor and going above the ceiling, Alan Grant gets to some kind of a hatch and makes everyone pass before going in himself. Right after, he's the first to exit the duct and makes everyone pass (again) onto the T-Rex bone structure.
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When the Explorer falls out of the tree, the left front headlight gets smashed by a tree branch. As it falls further, the light is on in some shots and off in others, alternating about five times. When the T-Rex steps on the upside-down Explorer, the A-, B-, and C-pillars all buckle and the roof caves in. Later, the interior shots of Timmy and Lex trying to get out show that the pillars are all still intact and the vehicle is simply sinking into the mud.
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When Nedry crashes and tries to use the winch to pull the car out, he unhooks and pulls the line twice.
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When he first learns that there's a T-Rex on the island, Dr. Grant has a grass stain on his pants before he sits on the grass.
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When Nedry adds the first embryos to the shaving cream can, the can is already half full. When he adds the second ones, the can is empty again.
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The positions of the people in the helicopter from the outside shot at the very end of the movie are different than they were during the shots inside.
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When Drs. Sattler, Malcolm, and Grant are talking in the cars, there are several shots in which rain shows on the windows of the Explorer, and several in which the windows are dry.
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The T-Rex footprint that Malcolm looks at when he is in the Jeep after being rescued was not there when the other two went to look for Grant and the kids in the other Jeep.
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When they leave the compound at the end, Grant jumps in the passenger side and Hammond drives away. When they reach the helicopters, Grant gets out of the driver's side and Hammond, Sattler, and the kids are shown walking toward the Jeep from behind it as if they rode in another one.
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When the T-Rex throws the goat's leg onto the car, you can see that it is a hind leg, but when you see the T-Rex swallowing the rest of the goat, you see both back legs disappear into its mouth.
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When Dr. Grant feeds the brachiosaurus, during the long shots, he holds the branch with both hands. During the close-ups of Lex, his left hand is loose by his side.
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As the jeeps are approaching the brachiosauruses, Dr. Grant's head turns to his right, facing the dinosaurs. In the next shot, he turns again and is surprised to see them.
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When Dr. Grant fires the shotgun in the control room at the intruding dinosaurs, the bullet holes in the glass are incorrect. They are clearly not from a shotgun round and are too small to be slugs.
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In the movie theater, when Hammond clicks his remote to lock the restraints in place, only the bars on the front row moves. In the next shot, all three rows are locked down.
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When Nedry realizes that he has lost control of the Jeep, he's shown turning the steering wheel hard to the right, but the next shot shows the skidding front/left wheel turned to the left.
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When Dr. Sattler finishes flipping all the power switches in the powerhouse, she is attacked by the raptor. When she is limping/running towards the door she is dragging a flashlight connected to her by a line. When she turns the corner she slams a door shut against the raptor but the line is not trapped or seen again when it should have been caught in the door, holding her back. Instead she runs from the building, again, no trace of the line or flashlight.
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As the Ford Explorers first arrive at the visitor center, (in a long shot) you see Lex walk to the front Explorer. Then, in a close-up (through the windows of the front Explorer), you see her walk up to it again.
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During the introduction ride, where it is shown and explained how the dinos are made, you hear the recorded voice saying the genetically engineered dino DNA is put into unfertilized ostrich eggs - but moments later we see a baby velociraptor hatching from what appears to be an actual dinosaur egg.
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Before Tim and Lex are attacked by the T-Rex the seat belt holder next to the door is in place where it should be. In the next shot the holder is not there, just a hole in the plastic interior of the car.
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When they arrive at the T-Rex cage right before the black out, we can clearly see the ground inside the cage is approximately flush with that outside the cage. But when the T-Rex escapes and begins to terrorize the two trucks, the ground in the cage is shown to be at least 100 feet below where it was before.
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When the T-Rex breaks out through the fence its first move shows it walking in between the two explorers away from the characters, which would give it no cause to have any interest with the explorers. In the following scene, the T-Rex is shown at the fence again.
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As the T-Rex was destroying the Explorer that Tim and Lex were in, in one shot, their clothes are nice and clean, and the next, they're filthy with mud.
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As Alan Grant gazes at the herd of brachiosaurus, he's sitting on the ground between Ellie Satler and John Hammond. But in a reverse-angle shot showing the three characters in the foreground and the dinosaurs in the distance, Ellie is standing between Hammond and Grant.
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Ellie makes a break for the maintenance shed. She jumps over a log and the shed can be seen in the distance. She then swings from a branch and then jumps over the same log again. Evidently, this was a different take as the shed is virtually lost in the fog effects.
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While Muldoon is on the ground, attempting to save Jophrey's life, his hat is missing, but when he gives the order to shoot the raptor, the hat mysteriously appears on his head.
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When Dennis jeep get stuck he notices a sign telling him which way to the docks, in the first shot the Arrow is pointing up. A few seconds later when Dennis falls down and proceeds into the jungle to attach the cable, the arrow is pointing to the left.
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When the T-Rex roars right by the jeep door, Timmy not only does not react to the earsplitting sound, he's not even looking at the Rex. The scene then quickly cuts to a closeup of him cowering in terror.
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When the raptors are being fed for the viewing of the visitors, a crew member's white shirt can clearly be seen shaking the leaves in the pit as the raptors attack their prey.
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When the Explorer is falling down while Grant and Tim are trying to get out of the tree, you can see the cable that is pulling the car downward.
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When Grant and the two children are being chased, the tire tracks from the moving camera can be seen in the grass.
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Lights visible before Muldoon gets attacked by the raptor.
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Shadow of crew member's hand visible causing spoons to drop when Lex is hiding in the cabinet.
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The raptor looks through the kitchen window with a spray of breath on the glass. Just before that, you can hear and see the digital clapper and the man holding it reflected on the door.
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When Dr. Grant and Tim are choosing which car to sit in at the Visitors Center two stage lights can be seen reflecting in the open car door.
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The video cameras in front of the steering wheel in the Ford Explorer are actually supposed to be used for the audience to see out the windshield. Even on the front bumper guard, there are video cameras, probably used for crew members to drive the vehicle from behind the backseat. When the camera zooms up to the main Jurassic Park gate, there is clearly a tiny camera on top of the driver's side windshield panel. Ian literally found this camera out after the people were looking at the T-Rex paddock.
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During the Gallimimus stampede when Grant, Lex, and Tim seek shelter under the fallen tree, you can see the shadow of a camera or crew member on Grant's body a few seconds before the T-Rex appears.
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Nedry is shown seated at a beachfront cafe behind the caption "San Jose, Costa Rica". San Jose is landlocked, without any adjoining lakes.
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When the people are leaving the island there are going towards the sunset, this means they are going west. In the third film it states that the island is west of Costa Rica. This means in the first film they are going towards Japan.
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In order for Timmy to be hurt by the electric fence, he would need some part of his body touching the ground. (It can't be an interlaced fence because there are wires connecting all the cables.) Since he was still several feet up, he is just as safe as a bird sitting on a power line. Even if it was interlaced, energizing it while he gripped it with both hands would not knock him off. He would be unable to let go. After further review, the cables are connected by cords, not wire. So it could, (but not must!) be an interlaced fence. At the time the sparks fly, Timmy is standing on one cable, he's holding another with both hands, and a third cable is about level with his knees. If the fence is interlaced, he would be okay as long as he doesn't touch the cable by his knees. (Or come within a quarter-inch of it!)
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In the first scene where the Ford Explorers pull up and Mr. Hammond brags about the cars, the boy Tim climbs inside and if you look closely you can see there is no seat belts in the vehicle. The restraints were cut because the vehicle could not be involved in a traffic collision due to the track system. Then when the T-Rex flips the Explorer over the kids do no fall from their seats because they were wearing some sort of restraints.
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When Nedry is stealing embryos, one group can be seen marked as "Stegasaurus". The correct spelling is "Stegosaurus".
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When Ellie is going to turn the power back on in the shed, Ian suggests to Hammond that Ellie follow the main cable. Hammond replies with "I understand how to read a schematic." A schematic is an electrical drawing, but it is to describe smaller electronics rather than whole electrical systems. Hammond meant something like "electrical map" or "electrical mapping".
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When initially passing the T-Rex paddock, the cars are heading right. When the cars return due to the hurricane coming, the cars are heading left. There could be an emergency turnaround point in the track that wasn't shown.
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Nedry gathers the dinosaur embryos, frozen in liquid nitrogen, with his bare hands. Brief contact, as shown, is possible.
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If Site B was where the dinosaurs were bred (In The Lost World: Jurassic Park) then why was the velociraptor born on Isla Nublar? Hammond wanted to create the illusion that all of the animals were, in fact, created on Isla Nublar. It isn't until The Lost World that it was revealed that Site B on Isla Sorna was where the large industrial compound producing thousands of embryos for a single viable one was located. This is explained in the novel but not mentioned in any of the movies.
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The 'Dilophosaurus' in the film had a retractable frill around its neck and was able to spit poison, aiming for the eyes to blind and paralyze its prey. While there is no evidence to support this representation, in the film it's stated when the group is on the tour and approach the holding facility of the Dilophosaurus, the announcer states that recently, they discovered that the venom and the frill were part of what it was capable of. Meaning, clearly the 'facts' were just simply exaggerated for the film, since they came upon discovering this through bringing it to life, when outside of the film, of course that never happened. It was probably added for dramatic effect for the later scene when Dennis would encounter the dinosaur.
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Dr. Grant is shown at the beginning of the film excavating a Velociraptor in Montana. True Velociraptors have only been found in central Asia, but Montana was home to the closely related Deinonychus, which some paleontologists considered to be the same as Velociraptor at the time the original Jurassic Park novel was written. For the movie, they kept the incorrect name.
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After shooting the velociraptor, Grant drops the shotgun on the ground, with the action open and the ejection port facing up. There is a shell visible halfway out of the receiver. This is probably the reason Grant stops trying to shoot the attacking raptors and drops the gun is precisely because of this "stovepipe" jam (assuming that he is not accustomed to firearms and therefore doesn't know racking the action would probably solve the problem).
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It is quite unlikely that a really important room like the control room doesn't have a manual (or at least an independently powered) lock which would be operational in the event of a power outage.
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The plot centers around finding dinosaur blood in fossilized mosquitoes trapped in amber. However, our first encounter with extinct life comes when Ellie examines a leaf and says, "This 'veriforman' species has been extinct since the Cretaceous." No mechanism is provided for how they could have cloned the plants, given that mosquitoes don't drink plant juices. It is possible that DNA could have been extracted from the amber (hardened tree-sap), but this still doesn't account for other types of plants, such as ferns and bushes.
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When Lex falls through the ceiling, a thin string can be seen falling along with the broken ceiling tile pieces. Notice the piece over to the left, it moves over an inch or two to the left.
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In the climbing of the electric fence scene, there is a shot where it is plainly seen that this is a mere section of fence, and the actors could easily walk around it.
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The air which blows off Grant's hat comes from below, not from the T-Rex.
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When Lex is hanging from the bones, she lets go of them then suddenly catches hold again.
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Obvious double for Lex when she is swinging with Grant off the T-Rex paddock concrete wall.
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When Dilophosaurus spits on Nedry the second time, you can see smoke coming in from off-camera on the left side of the screen. The smoke originated from a special effects gun used to fire the fake venom.
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The scene in the kitchen, when Tim is hiding beside the cooking utensils, you can clearly see a dark figure behind the counter knocking down the ladle.
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A close-up of the amber head of John Hammond's cane (as he rotates it in the control room, during the scene when Nedry leaves to steal the embryos) shows an internal vertical reflective plane, indicating that the "amber" is actually an acrylic casting poured in at least 2 steps.
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In the scene where the T-Rex comes out of its area and walks in front of Dr. Grant and Dr. Malcolm's Explorer, the car and the camera move every time the dinosaur steps, as if to simulate small "earthquakes", but the Jurassic Park logo hanging from the mirror doesn't move at all.
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When Dennis slides down the bank (waterfall) you can see a section of it that has been cut to make a sort of slide for him to go down. It is unlikely to be a storm gutter, plus Dennis manages to slip exactly where it is.
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When the Jeep is being chased by the T-Rex, the camera goes to the driver's side mirror showing the T-Rex and "Objects in mirror are closer than they appear". This phrase is only needed for mirrors with convex glass (used to allow the driver to have a wider viewing range and found on the passenger side of the vehicle), which the driver's side mirror does not have (it uses a piece of flat glass).
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As the Ford Explorer that has just chased Grant and Tim down the tree topples over and smashes onto the floor, the huge tree root on the right of the shot moves showing it's not a tree root at all and doesn't go into the ground it's just resting on the floor.
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When the T-Rex spins the upside down Explorer, in one shot a wire is visible connected to the vehicle. It is in the shot where the animatronics legs are visible.
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From the control room, Hammond sees Malcolm speaking to him through a surveillance camera apparently mounted in the vehicle. Interior shots of the vehicles, however, show no evidence of cameras anywhere in the vehicles, particularly the part that Malcolm appears to have been looking at. Early concept art for the film did show where the cameras would be, but the final design does not appear to include them.
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When the T-Rex flips the car with the children in it over, you can see a plant in a flower pot.
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When the T-Rex chase starts, the camera angle changes to Muldoon changing gears in the Jeep. It appears that he changes gears from second to first, not vice versa.
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There is an absence of blood on the shredded harness used to hold the cow after it has been fed to the Raptors, despite the violence of the feeding scene.
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When the T-Rex slams the side of the car with the kids, and later slams the side of the escaping jeep with Malcolm in the back, there is no visible damage to the vehicles.
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