Continuity mistake: There is a scene where everyone is dancing. It's towards the end but not at the very end. One of the employees of the record store takes his shirt off. Then the camera cuts back and you see the entire group of people dancing. If you look at him he has his shirt back on. Then a couple of shots later he has it back off again.
Continuity mistake: When AJ is painting outside after he told Cory he loved her, she comes out to confront him and you see a skateboarder over her shoulder skating down the pavement and then jump off the curb. It cuts back to AJ, and when it shows Cory again you see the skateboarder in the same spot again.
Continuity mistake: When Eddie comes in to actually work, he comes into the back room, takes off his pizza shirt and puts on a button down shirt that is already buttoned. Then he asks where "Sexy Rexy" is and his shirt is unbuttoned. Then after Debra says "Better question, where's Gina?", his shirt is buttoned again.
Continuity mistake: When Lucas finally ventures off the couch, he takes part of the couch with him. Then he goes and chased Warren, and when they take Warren into the back room, the couch is put back together. Then, when everybody is dancing a woman has the piece of the couch. Then later when Rex and A.J. are fighting, the couch is put together again.
Continuity mistake: When Mark is given the brownies by Eddie he starts to unwrap them. When he smells the brownies in the next shot they are completely wrapped.
Continuity mistake: Near the end when they are trying to raise money for the store, AJ sells his Alice in Chains painting then a few shots later it is back behind him.
Continuity mistake: At the beginning of the film, there is a shot of the Empire building before the camera pans down. However, the band equipment used on the ledge at the end of the film is already up there.