Trivia: Eric Stoltz was originally cast as Marty. After filming quite a few scenes they realised his acting style was too dramatic for the humor desired, so they cast Michael J Fox (who they couldn't originally get because he was busy with the TV show Family Ties). Filming was on weekends and nights around his TV schedule and using his double at other times.
Trivia: During the street race against the Asian brothers, Lane nearly runs over several nuns crossing the street. If you look closely you can see one of the nuns carrying a large ghettoblaster on her shoulder.
Trivia: There are three different hockey masks used either in this film or its advertisements. The first is the one that the Jason impostor (Roy) wears. It has two blue triangles below the eyes. The second is the one the real Jason wears when Tommy sees him in the hospital room at the end, with the red triangles. The third is featured on the poster. It has an un-holy amount of breathing holes on it. (01:23:00 - 01:27:10)
Trivia: Richard Donner, the film's director, has an uncredited cameo appearance as a police officer, on the beach at the end.