Goofs for
Saw III (2006) More at IMDbPro »

• Continuity: When Lynn is operating on John's head, she cuts the skin from the skull and then clips off some veins. Right when she asks Amanda to fill the syringe with alcohol to clean John's head, Lynn turns back to wipe up some of the blood, but there are no clips in place. A shot after that, we see her taking the syringe from Amanda's head and squirting the alcohol on John's head and the clips are there.
  
  
• Continuity: When Dr. Denlon is preparing for Jigsaw's surgery, her hair goes from being tied back, to being out, to being tied back again, within three shots.
  
  
• Continuity: Near the end of the movie, when Amanda's holding Lynn at gunpoint and threatening to kill her, the hand in which she's holding the gun changes with different shot angles.
  
  

• Continuity: When Lynn, the Doctor, is drilling the four holes in Jigsaw's head for the operation, tape is on the drill to mark the maximum depth. The placement of the tape changes positions throughout the scene, between 1/2 inch and 1 1/2 inches.
  
  
• Miscellaneous: After Jeff and the judge get out of the vat of puréed pig they are dry and clean for the rest of the movie.
  
  
• Factual errors: When Lynn treats the child's pneumothorax with a drainage, the nurse exclaims that the patient is improving. However, at that moment the monitor shows a ventricular fibrillation (VF), a severe arrhythmia that causes death unless immediately treated. Moreover, the VF spontaneously turns into a stable "normal-beat" heart rhythm without an electrical shock, situation that's almost impossible to see in the clinical practice.
  
  
• Revealing mistakes: When Lynn is wearing the "Shotgun Collar," close-up/insert shots show the primers on the shotgun shells already discharged. This means the shells had already been fired and would not work. While we could imagine that empty shells were used as containers for explosives, this is inconsistent with the collar's design (hammers are set to strike each cartridge) and effect (the collar, cartridges, and most of the victim above the chin are intact after firing).
  
  
• Continuity: The picture Jigsaw shows of Amanda in the flashback before she is captured and placed in her trap is actually a photo of her from Saw (2004), where she is interrogated about Jigsaw and explains what happened to her *after* she was in the trap.
  
  
• Revealing mistakes: When Jigsaw pulls out the tape player at the end of the movie, his thumb is on top of the tape player, nowhere near the play button on the side of it. However, we distinctly hear a click (as if the play button had just been pressed), and the tape begins to play, even though the play button was never pressed.
  
  
• Continuity: While Kerry is in the angel trap, and the key is first dropped in the acid it automatically begins to bubble immensely. But while the tape plays explaining the game and her objective the key does not bubble there is nothing happening in the jar but immediately after he says in a matter of seconds it bubbles profusely again once the camera focuses on the jar.
  
  
• Errors made by characters (possibly deliberate errors by the filmmakers): Towards the end of the movie when the police team enters the house where they believe the feed is coming from Jigsaw has told them there is a gas flowing through the house, yet none of the police team is wearing any type of gas mask.
  
  

• Continuity: SPOILER: In the scene just before Amanda shoots Lynn, her gun switches back and forth from between her right and left hand.
  
  
• Continuity: SPOILER: When Amanda is shot in the neck by Jeff, she falls to the floor next to a white cabinet. As the scene continues, the cabinet switches back and forth between having been splashed by her blood, and being perfectly clean.
  
  
• Continuity: SPOILER: When Kerri is in the "angel" trap, before she plummets her hand in the acid, you see her hover her hand above it for a few seconds, but you see her actually touch it just before the cut... yet she doesn't even flinch.
  
  
• Continuity: SPOILER: When Eric is fighting Amanda, and beats her head against the wall, there is no blood on that wall, even when Amanda has blood all over the face.
  
  
• Continuity: SPOILER: Kerry's hand is severely burned by the acid, but all following scenes, her hand shows no burns.
  
  
• Continuity: SPOILER: When Jeff slices Jigsaw's throat using a circular saw, there is no blood on that saw when he drops it to the floor.
  
  
• Audio/visual unsynchronized: SPOILER: When Amanda fires her gun in the finale (and the repeat shot in the flashback montage), it sounds as if it's silenced, when indeed it isn't. Ironically, this error is rectified when the event is repeated in Saw IV (2007).
  
  
• Incorrectly regarded as goofs: SPOILER: In the "angel" trap, Kerri is told she has to reach in and get the key out of the acid. Right after the tape finished playing, we see Kerri struggle with the chains holding the beaker for a second and then reach into it. This shows us that because of the way the beaker is suspended and the way she is restrained, she is unable to tip the beaker far enough to spill any of the acid.
  
  

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