Continuity mistake: When Preston is receiving the money from the bank, the banker tells him to put his backpack on the desk. Preston does as told and then the shot goes to the banker putting in the combination to the safe. Then the camera goes back to Preston and he is putting the backpack on the desk again.
Continuity mistake: When Preston and Shay are dancing around in the fountains at the restaurant, Shay's dress is wet, and in some shots her dress is dry. This mistake occurs often during this scene.