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.
Unfortunately the movie The Land That Time Forgot is not yet available on HBO Max.
| Writing | Michael Moorcock | Screenplay |
| Writing | Edgar Rice Burroughs | Novel |
| Directing | Kevin Connor | Director |
| Writing | James Cawthorn | Screenplay |
| Camera | Alan Hume | Director of Photography |
| Sound | Douglas Gamley | Original Music Composer |
| Art | Maurice Carter | Production Design |
| Costume & Make-Up | Julie Harris | Costume Design |
| Production | John Dark | Producer |
| Art | Bert Davey | Art Direction |
| Production | Max Rosenberg | Producer |
| Production | Robert H. Greenberg | Executive Producer |
| Production | John Peverall | Associate Producer |
| Editing | John Ireland | Editor |
| Production | Milton Subotsky | Producer |
| Visual Effects | Derek Meddings | Special Effects Supervisor |
| Crew | Ian Wingrove | Special Effects |
| Crew | Roger Dicken | Special Effects |
