Continuity mistake: After Gulliver plays Guitar Hero he points at himself with his right thumb. From the angle from behind it's his left thumb.
Continuity mistake: When the crazy 8 go for their first night swim, they are dry when they get to the chapel on the way back, yet when they get into their dorm, they are semi-wet.
Continuity mistake: When Stern is cutting Gutterman loose and they're at Rachel's desk, Gutterman is right behind Stern, close enough to touch the desk and sets his hat on it. The shot changes and Gutterman is now further away, not even in arm's reach of the desk.
Continuity mistake: At the end when Walter Weed comes to the escape car the car is already running, with smoke coming from the exhaust, but then he starts the car when he wants to drive away.
Continuity mistake: At the end of the movie, when Robert has been resurrected as a tricycle, the bell and ribbon keep moving back and forth from the right handle bar to the left one.
Continuity mistake: During the last scene, the strands of hair that Edgar has running down his face/right cheek are over the top of his head during some shots. Edgar is holding a book between both hands, so not moving the strands himself. (01:16:19 - 01:16:55)
Continuity mistake: During the scene on the beach, the shadows lengthen and shorten dramatically from shot to shot.