The original version of this film is entitled "The Equinox: A Journey Into the Supernatural" (1967) directed by Dennis Muren. This version used the same cast, but includes stop-motion animation not seen in the release version, a totally different storyline, doesn't include the character Asmodeus, has a completely different music score, differently filmed versions of scenes which were in the released film and other differences. Jack Woods is credited as writer and director of the 1970 release version.