Continuity mistake: Remember when Lisa Swanson had the Statue of Liberty on her head? Well, when they took a long shot of all the contestants the hat was gone.
Continuity mistake: In the scene where Amber first realizes her tap costume is missing, the scene starts with Lesley Miller walking by in a white bra and red panties. In the very next shot, she is sitting doing her makeup in her physical fitness costume.
Chosen answer: I don't think anyone actually put gasoline over the float - it's suggested in the movie that the float is leaking gasoline because Becky's father imported it cheap from Mexico.
Shay