D'Amato said "(It was shot) in Florida mostly, though we did do a small part along the Mississippi River...The actual underwater scenes though were shot in various places: at Ventotene, in a Roman swimming pool and in a New Orleans aquarium. We built a mechanical shak's head, and for the rest we used stock footage shots..." The shark stock footage was bought from the National Geographic Society. In the scene of the explosion killing the shark, footage from "Great White" is used.