Continuity: At the super market, Julian has an itch and Corinne lays a package of frozen vegetables on his arm. In the first shot, the package is right side up. But in the very next shot the package is upside down.
Incorrectly regarded as goofs: While most New York hockey games start around 7:00 PM, there are afternoon games, so it could still be daylight after a hockey game.
Continuity: When "Frankenstein" vomits on the floor, it is partially on the floor and partially on the carpet. Later, it is totally on the floor with none on the carpet
Continuity: When Sonny's gay friend Tommy is discussing the young boy with him (and Julian is eating 30 packets of ketchup), Tommy changes the direction he's facing between shots.
Continuity: The skater that trips on the stick is shown skating past the kid before he throws down the stick.
Audio/visual unsynchronized: The game Julian is playing is Twisted Metal III (1998) (VG). However, the sounds we hear while he's playing are generic "boop-boop-beep" arcade noises, and not actual sounds from Twisted Metal III.
Revealing mistakes: At the end of the movie when they gather at Hooter's, Sonny kisses Layla and his baby which clearly looks real then right after Sonny insults his ex Vanessa, Layla is leaning over the table of food with an obviously fake baby
Continuity: When Julian spills the gallon of milk on the floor, Sonny puts newspaper over the milk to soak it up. However, the newspaper never gets wet.
Revealing mistakes: When Julian spills the milk on the floor the milk is spreading towards the back of the room. Then when the camera switches back to Sonny the milk is a circular pool before Sunny put the newspaper on it.
Continuity: Sonny's meeting with Julian's teacher takes place a significant amount of time after Halloween, but the classroom is still decorated for Halloween
Continuity: When Sonny is walking back to couch after tuning the television and says, "Let's do it, Rangers," he places his Pepsi behind the Chunk Chip bag. In the next shot when he says, "How you doing?" to Julian, the Pepsi is to the right behind the Cheetos Bag.
Revealing mistakes: When the skater coming down the path in the park hits Sonny's stick, he careens down the hill into the pond between two large rocks. The smaller rock on the right lifts and floats a little to the right.
Continuity: When Sonny is watching the Hockey game, the pillow on the left of him changes from being up, and down in between shots.
Continuity: When Sonny is pouring milk into the lotion bottle for Julian to put it on his cereal, the bowl is heaping with cereal but in the next shot, it is level.
Continuity: When Julian won't stop talking to the homeless man before going into McDonalds, the homeless man asks Sonny to get him a Sausage McMuffin. When Sonny and Julian come out from McDonalds the homeless man asks Sonny where his Egg McMuffin is.
Continuity: When Sonny is arguing with Julian over what to order in McDonald's, the man behind Julian (who later comments about Sonny's parenting) turns towards Sonny. When we cut back to Julian, the same man turns again.
Continuity: When Sonny does the wrestling move on Nazo, and he passes out, Nazo's head is first turned to the left. In the next shot, it is turned to the right. Then turned to the left again.
Continuity: When the bum asks one of the guys in the courtroom if he can use his phone, he gives him a look of disgust, as if he doesn't want to let him use it. But the next time we see the bum, he is using the phone.
Continuity: When Sonny and Julien are shopping at the store, Sonny starts denting Spaghetti Os cans to save money. The second can dropped moves from the left of sonny to the right. At both times before the shot the can was stationary.