Other mistake: Several times throughout the movie people are looking into the camera. Mostly at the grand opening of Water World, and at the surf competition.
Shark Attack 2 (2000)
1 other mistake
Directed by: David Worth
Starring: Caroline Bruins, Dan Metcalfe, Nikita Ager, Thorsten Kaye
Revealing mistake: During the surf competition, while Tom is swimming away from the sharks, the water is calm, suggesting this scene was shot in a lake or pool. You can see it again while Nick is swimming back to his jet swimmer.