Continuity mistake: When they are running the obstacle course, the amount of hoops in front of the girls changes from five, to two, to five again.
Continuity mistake: When Selena is singing "Como La Flor" in Mexico after the crowd was pushing into the stage, her mouth doesn't match the words to the song. Her mouth is a few words ahead of the song.
Continuity mistake: At the end of the dress rehearsal, when the policeman looks around the corner, someone's shirt appears on the armrest of Nathe's chair. (01:01:40)
Continuity mistake: When Billy Magic [Kevin Bacon] was backing into a parking space and stopped, the driver's side tires on his Cadillac were touching the white divider line. Seconds later when he was getting out of the Cadillac, the car/tires were more centered in the parking space (i.e, the left tires were no longer close to the white divider line). (00:14:50)