De astronaut Brent reist zijn verdwenen collega's achterna en maakt een tijdssprong in de ruimte naar het jaar 3955. Hij landt op een door een atomaire ramp verwoeste aarde, waar vervaarlijke chimpansees het voor het zeggen hebben. Tweede deel van de Planet of the Apes-serie.
Nee, helaas is Beneath the Planet of the Apes nog niet beschikbaar op Netflix in Nederland.
| Camera | Milton Krasner | Director of Photography |
| Art | William J. Creber | Art Direction |
| Crew | Art Cruickshank | Special Effects |
| Art | Jack Martin Smith | Art Direction |
| Editing | Marion Rothman | Editor |
| Writing | Mort Abrahams | Screenplay |
| Writing | Paul Dehn | Screenplay |
| Production | Arthur P. Jacobs | Producer |
| Crew | L.B. Abbott | Special Effects |
| Directing | Ted Post | Director |
| Sound | Leonard Rosenman | Original Music Composer |
| Sound | David Dockendorf | Sound |
| Sound | Stephen Bass | Sound |
| Writing | Pierre Boulle | Characters |
| Crew | Eddie Hice | Stunts |
| Crew | Kent Hays | Stunts |
| Crew | Gene LeBell | Stunts |
| Directing | Fred R. Simpson | Assistant Director |
| Crew | Tony Epper | Stunt Double |
| Crew | Stan Barrett | Stunts |
| Crew | Denny Arnold | Stunts |
| Costume & Make-Up | Daniel C. Striepeke | Makeup Supervisor |
| Art | Walter M. Scott | Set Decoration |
| Costume & Make-Up | Verne Langdon | Special Effects Makeup Artist |
| Production | Mort Abrahams | Associate Producer |
| Crew | Terry Leonard | Stunts |
| Costume & Make-Up | Edith Lindon | Makeup Artist |
| Crew | Nick Dimitri | Stunts |
| Crew | Clyde Hudkins Jr. | Stunts |
| Crew | Jack Williams | Stunts |
| Costume & Make-Up | John Chambers | Makeup Designer |
| Crew | Eddie Smith | Stunts |
| Crew | Dick Hudkins | Stunts |
| Costume & Make-Up | Morton Haack | Costume Designer |
| Crew | Hubie Kerns | Stunts |
| Crew | Alan Gibbs | Stunts |
| Costume & Make-Up | Peter R.J. Deyell | Makeup Artist |
| Crew | Hubie Kerns Jr. | Stunts |
| Crew | Dick Bullock | Stunts |
| Crew | Walter Scott | Stunts |
| Crew | Gary Epper | Stunts |
| Crew | Orwin C. Harvey | Stunts |
| Crew | Paul Stader | Stunt Coordinator |
| Crew | Loren Janes | Stunt Double |
| Crew | Eldon Burke | Stunts |
| Crew | Ellis Burman Jr. | Makeup Effects |
| Art | Sven Wickman | Set Decoration |
| Costume & Make-Up | Sharleen Rassi | Hairstylist |
| Costume & Make-Up | Jan Van Uchelen | Hairstylist |
| Crew | Hank Calia | Stunts |
| Crew | Mickey Gilbert | Stunts |
| Crew | Gary McLarty | Stunts |
| Crew | Whitey Hughes | Stunts |
| Lighting | Fred Hall | Gaffer |
| Camera | Arthur Gerstle | Assistant Camera |
| Directing | Chuck Roberson | Second Unit Director |
| Writing | Pierre Boulle | Novel |
