Continuity mistake: During the scene in which Evan and Seth first talk to Fogel about the fake I.D. several students are seen changing positions during shots. Most notably the white girl in a blue shirt standing in the backround between Evan and Seth being replaced by a black guy in an unrealistic time frame in between shots.
Continuity mistake: There is a scene where Evan, Seth and Fogell are discussing the list of liquor that Fogell is going to purchase while standing in front of the liquor store. Take notice of Fogell's left long sleeve shirt; it goes from being folded back enough to expose his wristwatch to being neatly folded down within several quick shots.
Continuity mistake: After Evan, Seth and Fogell run from the two cops, the boys come to a bus stop, with a bus just pulling up to it. Take notice that there are about two passengers on the bus. Upon entering the bus, not only has the number of riders increased, but you also see the bum that you should have seen in the back of the bus (Fogell encountered earlier) from the previous shot when the bus arrived.
Continuity mistake: When Seth and Evan are turning the corner and are stopped by Jesse when he is about to tell them that they're not invited to a party he's holding, Evan has a drink in his left hand when he turns around, and in the next shot he's holding it in his right hand.