Continuity mistake: When Donnie steals Chuckie's clothes and glasses, Chuckie puts on Donnie's shorts and complains about his eyesight. But later in the movie, when he doesn't have his glasses, it seems he can see just fine. Then, when he gets his glasses back, he says something like "I can see again."
Continuity mistake: In the beginning of the movie when the two guys steal the lady's purse and pull off her fake arm, the arm they grab is the woman's left one, but the arm the guy is swinging around is a right arm.
Continuity mistake: When Jackie and Watson are driving Watson's car right after they've been on a video conference with all the professors, they park the car. We see Jackie has his seatbelt on, but when it cuts to him breaking the door off the seatbelt is no longer on him. He could not have removed it that fast. (00:53:40)
Continuity mistake: Nino gets trussed up in silver duct tape. The boy gets bundled over the shoulders of one of the bad guys, and you can see that there is only a small amount of tape around his legs. They go straight inside the meat packing factory and suddenly in the next shot, there is a huge amount of tape around the boy's legs.
Continuity mistake: When Yosemite Sam is chasing everyone through Las Vegas he drives the race car through a souvenir stand. This puts a large dent in the front hood of the car. This dent disappears when the car is shown next.
Continuity mistake: As the New Main Street Singers are performing their second song at the show, you can see Parker Posey pretend to use her guitar as a shotgun. The strap for the guitar drops from her shoulder down to her right forearm when she does this. When the shot changes the strap is back up over her shoulder. (01:01:40)
Continuity mistake: As Nicolas Cage is smoking a cigarette in his car when his daughter comes into view for the 1st time. The camera angle flips between him, him with her in the background, to his key, back to him, and back to him with her in the background. Each time the angle changes so does the length of his cigarette. The time span is only a matter of 10-15 secs as she walks up and then starts to walk away, but his cigarette ends up being longer than when she walked up. (00:25:25)
Continuity mistake: In the scene were Hans tries to hang himself, you can see that the chandelier falls down but in the next scene when O.J the owl flies underneath it, it is still there.
Continuity mistake: When Isabelle arrives in front of Roxy's apartment, you can see the cab driver close the trunk after he removes Isabelle's bags, but when Charles-Henri hands the driver his bags a moment later the trunk is still open.
Continuity mistake: Marion isn't wearing any clothes as they enter the convenience store. However, as they are standing in the doorway you can see he is wearing boxers.
Continuity mistake: When Helen puts the trashbag down, with the teddy on top, the teddy's scarf hangs down over its face. But when Gypsy picks it up, the scarf is no longer hanging over its face.
Continuity mistake: In the examination scene John (Mike Myers) places a Rubik's Cube on the desk in front of him. The camera angle then switches to overhead and the cube is not there. Then he shouts "Stop writing" and the cube is in front of him but further to his right than before.
Continuity mistake: At the very beginning of the movie, Rachel Leigh Cook drops Doleman off at the bank and he says, "I'm going to go in there and blow them away." At the end of the movie, when the scene is replayed from a different camera angle, he says, "I'm going to go and try and blow them away."
Continuity mistake: As April walks up the stairs after finding out that her family left, she pops all the balloons. But when she reaches a turn in the stairs, she rips down the orange crepe paper and lets it fall to the steps. The crepe paper was still stapled to the wall though, and in reality would have ripped instead of all coming down in one piece.
Continuity mistake: In the "No Problem" scene, Alex lights up a cigarette while waiting for Isaach and then leaves it in the ashtray. Later on, when Isaach finally arrives, Alex offers him a cigarette and lights one for himself. The cigarette left in the ashtray disappears in the next shot.
Continuity mistake: In the scene were Lloyd finds Harry's "treasure chest", you can see that the chest is laying flat against the wall, but when the Principal and the lunch lady come and find it missing, there is a small dirt outline, as if the chest was pointing out from the wall, instead of larger outline, as if it were flat against the wall.
Continuity mistake: When Fin meets Emily in the Mill Bar, the amount of beer in his glass goes up and down without him buying a round or replenishing his glass.
Continuity mistake: When Ray and Eva are at his house playing pool, they stop to talk and Ray has both his hands on top of the pool stick during the scenes shot from the front and during the scenes shot from the back he's just holding the stick by the shaft.
Continuity mistake: When Jason Lee is driving the car over the humps in the road, Julia Stiles is in the passenger seat. In the shot before they take off Jason Lee is in the driving seat, when they show the shot of the car in mid air Julia Stiles is now in the driving seat, and in the shot as the car lands they are back in the right seats.
Continuity mistake: When Julia Roberts is sitting on the couch with the male teacher, after he pours her a drink, they move the camera and show her and her drink is almost empty and then they show him and the drink is almost full. They then repeat going from her with an almost empty glass to him with her glass almost full.