Deliberate mistake: In the scene where Marie is trying on shoes, a pair of powder blue high top Converse sneakers can be seen next to her feet. It must have been done intentionally, but since there is no trace of modern apparel anywhere else in the film (the closest would be the mere mention of hot pink dress fabric but, as it's not shown, we don't know what exactly Marie calls "hot pink") these shoes (and the fabric) can't be considered part of a thematic element or artistic license. (00:55:35)
Continuity mistake: You can't even see inside because of all the smoke (fog) when Dante pulls up to Moobies after he went looking for Becky. But 90% of the smoke (fog) is gone as soon as he walks in the door. You can *easily* see outside the windows in the rest of the shots. There's not nearly enough time for the smoke (fog) to evaporate.
Continuity mistake: When Jake is told to take his soccer equipment and put it in his room, he takes it and sits on his bed, and shoves all the gear underneath his bed. In the next shot when Trish enters the room, half of the equipment is back out on the floor again.
Continuity mistake: When Sheba is standing outside of the car talking to Barbara in the scene where she has to choose between her son's play and consoling Barbara, the passenger door is shown opened, then closed, then opened etc.
Continuity mistake: When all of the dancers are preparing for the showcase dance, Nora walks in with hair that has her usual bounce. When she and Lucy are talking in front of the mirror, her hair is almost completely straight, sporting just a few slight waves. When Tyler approaches her backstage, her hair is extra curly. It has only been a few minutes, and there was not enough time for her to have curled it. This is confirmed in the commentary.
Deliberate mistake: At one point they use a Red Ryder BB gun (Yes, just like in A Christmas Story) and the guy says "You pumped it more than twice, didn't you" to his female counterpart when they shoot the bird. Red Ryder BB guns cannot be cocked/pumped more than once, due to the simple nature of the toy gun that it is.
Continuity mistake: Denning and Grim get tied up and hung in front of the screen at the drive in movie. That night, their arms are free and flailing, but the next morning, their arms are tied down.
Continuity mistake: The first time Otis is in the barn at night he carries a glass of milk in his hand. However, when Daisy sees him, the glass of milk disappears from his hand.
Continuity mistake: Right after Phin gets run over by the carriage, when the cops are talking to Hutch and Zwink, the laptop in the van moves between shots.
Continuity mistake: In the scene on the roof after the power transfer, Hannah falls through the sky light and Matt yells down to her. You can tell the close-ups on Matt were re-shot because Matt's hair is longer and styled differently in between shots.
Revealing mistake: When Cole's friend is being attacked by crows, Cole and his sister are driving. The car starts to skid and an above shot shows many skids marks on the road from previous takes.
Revealing mistake: Just as the bus begins to roll down the mountainside, cables are visible which were holding the bus in place. Most easily seen during the first complete rollover. (00:05:45)
Continuity mistake: When Katie is listening to music in her room she takes off her jacket, then in the next shot it is back on again. (00:13:05)
Continuity mistake: In the first 'Ice Age' Diego isn't afraid of water (in the beginning he chases the woman and the baby through the river before she jumps off the waterfall and never shows any fear) but in this one he suddenly is. It's not like that he is just afraid of swimming because in the second movie he shows fear anytime when he touches water.
Continuity mistake: In the end, all the pictures in the cousin's book are normal, but earlier Leroy tore Xs in each.
Deliberate mistake: When Carrie is hiding in the locker room to record John talking with his friends, it's clear that her camera is behind the vent, and the openings in the vent are closer together then the diameter of her camera lens, however we don't see the vent slats in the camera view or the replaying of the video footage in a later scene. Not to mention the fact that she isn't holding the camera steady. This is impossible.
Continuity mistake: In the scene after Rae discovers being chained her top changes positions on her shoulder between the shots.
Continuity mistake: When Cleveland introduces Mr. Farber to Young Soon Choi, Heep says her apartment is 8A. But, later when Cleveland goes to Choi, the door number reads 16B.
Continuity mistake: In the beginning scene, when Billy and Woody are on their way to the new house, Woody is seen eating a bean burrito. There is glob of beans on his hand that disappears in the next shot, but appears again in the following shot.
Continuity mistake: When Mumble is still a baby, his "bowtie" does not appear until Boss Skua has him pinned down under his foot. Then shortly after, it disappears again, only to reappear when Mumble falls into the crack in the ice.