Continuity mistake: The first night in Genova Mary cries and her father comes to hug her. Her hair keeps swapping back and forth from sweaty and stuck to the forehead to loose.
Continuity mistake: In the scene at the end of the film at his grandfather's empty lake house, Simon first unloaded the wooden Christmas figures from his duffel bag onto a pile of firewood on the dock. He then went into his grandfather's workshop and sawed the scroll off of his mother's violin. With his phone, he took a picture of the severed scroll in his hand with the dock in the background, but the dock was empty.
Continuity mistake: In the scene where the drama teacher is in the copy shop trying to decide what color paper to buy, his hand keeps moving between shots. Every time the shot is from the copy shop side of the counter, the drama teacher's right hand is in front of the blue paper. But every time the shot is from the drama teacher's side of the counter, his right hand is in front of the orange paper.
Continuity mistake: When Rincewind and Twoflower are at the Edge, Rincewind tells how he only knows the one spell from the Octavo and how he got it. In several shots of Twoflower the clouds in the background change drastically, often between one- and two-seconds shots of Rincewind. The clouds are almost motionless in every shot, so they could not have drifted that fast so suddenly.
Continuity mistake: When Michelle and Leonard are up on the rooftop for the last time, the left side of her hair keeps swapping from being behind to in front all the time.
Continuity mistake: When Noah, Brandon, and Chance are about to Vogue, between shots, Ricky changes positions.
Continuity mistake: When Abby is finished washing the dishes, she tosses the towel she was using and it lands on top of a red can. An immediate close-up of the towel on top of the can proves this (0:25:29). A second later, the picture zooms out again to show her bending over from exhaustion (0:25:30). The towel is no longer on the can, but behind it against the wall. Abby follows the shop owner into a room adjacent to the kitchen and when they come back, the towel is once again on top of the can (0:25:55), but most of it is inside the can this time. It's obvious that neither her nor the shop owner has touched the towel and no one else is in the shop. (00:25:25)
Continuity mistake: When Justin gets his sex toy home, he turns his family photo facing down on his nightstand. He turns the photo down square with the nightstand. The next cut, the photo is turned 45 degrees to the nightstand. (00:14:10)
Continuity mistake: Gina's father opens the door, club in his hand, and finds his family inside for the surprise party. In the reverse shot, Gina's position is also mirrored, having the right arm raised instead of her left. (00:08:15)
Continuity mistake: Mike Manador watches his girlfriend Gina drive away in a taxi. Behind him a truck can be seen coming down the street. Mike then steps out into street seconds later, but the truck has vanished. Next shot looks up the street and sure there is the taxi but no other vehicles, and you can see the entire street. (01:41:25)
Continuity mistake: When Wyatt is shot, the amount of blood on his shirt next to the collar increases, decreases and even disappears between shots.
Continuity mistake: When the mother puts the drawing from her daughter in her pocket she puts it in the left pocket of her jeans. When she takes it out later, she takes it from her right jean pocket.
Continuity mistake: When the first guy out of the main 3 is dragged to the hunting range (after having his spine exposed and meat cut off), he falls backwards into the snow and when he sort of rolls over, there is snow all over his exposed backbone and flesh but when he stumbles and gets up, there is no evidence of snow whatsoever.
Continuity mistake: When Despereaux fights the cat in the rat arena, he hides behind a blue ball of yarn. When the cat hits the yarn, causing Despereaux and the yarn to fly in the air, in the next shot, the ball of yarn vanishes and never reappears again.
Continuity mistake: The getaway car has its path blocked by the police on one end of the road. They U-turn and try to escape the other way. During this sequence there are POV shots from inside the car that were filmed at a very different time; the natural light is completely different. (00:02:20)
Continuity mistake: In the beginning, when Michael Berg is sick on the street in Neustadt and is leaning on a wall to throw up, he's near a closed door and is positioned to the right of that door. Next shot, from inside, shows the door now open and he is leaning to the left part of the door. (00:03:15)
Continuity mistake: Jim, driving Scott home, is smoking a cigarette that disappears before he slaps Scott the second time. There is no smoke in the vehicle that would suggest Jim temporarily placed the cigarette in the ashtray. (00:15:09)
Continuity mistake: There is a modern coffee thermos container on the sink by the window during a scene set in the 1930s. In the next shot, it suddenly disappears. (00:46:25)
Continuity mistake: At the end of the film, Nicolas Cage assaults the enemy compound with two Glock 17s. When he exits the compound and shoots at the boss's car, which is pulling away, in one shot he is firing a SIG P226, but in a later shot is using a Glock again. (01:28:55 - 01:29:45)
Continuity mistake: The neighbors are dripping wet as they get out of the hot tub, yet they don't drip any water when they get onto the trampoline.