As the Earth wrestles with its agonizing birth, the peoples of this barren and desolate world struggle to survive. Driven by animal instinct they compete against the harsh conditions, their giant predators, and warring tribes. When two people from opposing clans fall in love, existing conventions are shattered forever as each tribe struggles for supremacy and Man embarks on his tortuous voyage of civilization.
Unfortunately the movie One Million Years B.C. is not yet available on HBO Max.
| Camera | Wilkie Cooper | Director of Photography |
| Editing | Tom Simpson | Editor |
| Costume & Make-Up | Carl Toms | Costume Design |
| Sound | Mario Nascimbene | Original Music Composer |
| Art | Robert Jones | Art Direction |
| Writing | Michael Carreras | Screenplay |
| Production | Michael Carreras | Producer |
| Directing | Don Chaffey | Director |
| Visual Effects | Ray Harryhausen | Visual Effects |
| Production | Hal Roach | Associate Producer |
| Production | Aida Young | Associate Producer |
| Writing | Joseph Frickert | Original Film Writer |
| Writing | Mickell Novack | Original Film Writer |
| Writing | George Baker | Original Film Writer |
| Costume & Make-Up | Olga Angelinetta | Hair Supervisor |
| Costume & Make-Up | Wally Schneiderman | Makeup Supervisor |
| Crew | George Blackwell | Special Effects |
| Crew | Gillian Aldam | Stunt Double |
