During World War I, a German U-boat sinks a British ship and takes the survivors on board. After it takes a wrong turn, the submarine takes them to the unknown land of Caprona, where they find dinosaurs and neanderthals.
Michael Moorcock | Screenplay |
Kevin Connor | Director |
James Cawthorn | Screenplay |
Edgar Rice Burroughs | Novel |
John Peverall | Associate Producer |
John Ireland | Editor |
Maurice Carter | Production Design |
Bert Davey | Art Direction |
Milton Subotsky | Producer |
Robert H. Greenberg | Executive Producer |