Did You Know?
Some of the stop-motion dinosaur puppets made for this film were later reused on Land of the Lost
(1974). See more
There are two versions released in U.S. The original uncut and unaltered version shown on Hollywood in 1970 with Aylsworth Kleihauer script (released on VHS and in 16mm films in library archives) and the 1986 revised edited version (shown on 16mm prints and on Mr. Know it Owl Video) with Ruth S. Zick script. See more