The Land That Time Forgot (1974)

During World War I, a German U-boat sinks a British passenger ship and takes the survivors aboard. After getting lost in fog, the submarine surfaces near the unknown island of Caprona, a lost world where they find dinosaurs and Neanderthals.

Directed by: Kevin Connor

Starring: Doug McClure, John McEnery, Susan Penhaligon, Keith Barron, Anthony Ainley, Godfrey James

Links: IMDb, Movie posters, Movie stills