Trivia: The dolphin was trained to retrieve many objects that were thrown in a pool at SeaWorld Miami. There were maybe 12 -16 different shaped and weighted items that she learned to pick up and place on the side out of the pool and water. One of the objects and the most important was a black rubber gun. Every single time the only object she would not recover was the gun.
Trivia: Director Russell Mulcahy manages to insert his name in this movie: Lamont Cranston's butler is addressed as "Russell" by Margo Lane at Cranston's residence, and there is a delivery truck with the name "Mulcahy" emblazoned on the side of the vehicle.
Trivia: In the hospital Heather is told that she can not be in a certain area without a pass; she replies "Screw your pass." The very same line was spoken, by her character Nancy in Nightmare on Elm Street 1, to a hall monitor in her dream.
Trivia: In the movie, Reggie comments on Mark's Led Zepplin t-shirt, saying they were a great band. Mark accuses her of being one of those adults who pretends to like cool bands to get close to little punks like him. This parallels an incident where Brad Renfro was reading for the role of Mark, and a suit in the production office saw his Megadeath t-shirt and claimed to like that band, too. Renfro said the same thing to the producer that Mark eventually says to Reggie in the film.