Forbidden Zone is an American absurdist musical fantasy comedy film produced and directed by independent filmmaker Richard Elfman, and co-written by Elfman and Matthew Bright. Shot in 1977 and 1978, the film premiered in 1980 and was distributed in 1982. Originally shot on black-and-white film, Forbidden Zone is based upon the stage performances of the Los Angeles theater troupe The Mystic Knights of the Oingo Boingo, of which Elfman, Bright and many of the cast and crew were a part, and revolves around an alternate universe accessed through a door in the house of the Hercules family.

Richard Elfman is an American actor, musician, director, producer, screenwriter, journalist, author and magazine publisher.