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.
| Writing | Paul Dehn | Screenplay |
| Crew | L.B. Abbott | Special Effects |
| Camera | Milton Krasner | Director of Photography |
| Sound | Leonard Rosenman | Original Music Composer |
| Crew | Art Cruickshank | Special Effects |
| Art | Jack Martin Smith | Art Direction |
| Directing | Ted Post | Director |
| Editing | Marion Rothman | Editor |
| Writing | Mort Abrahams | Screenplay |
| Art | William J. Creber | Art Direction |
| Production | Arthur P. Jacobs | Producer |
| Sound | David Dockendorf | Sound |
| Sound | Stephen Bass | Sound |
| Writing | Pierre Boulle | Characters |
| Crew | Loren Janes | Stunt Double |
| Crew | Eddie Smith | Stunts |
| Crew | Ellis Burman Jr. | Makeup Effects |
| Production | Mort Abrahams | Associate Producer |
| Crew | Hubie Kerns | Stunts |
| Art | Walter M. Scott | Set Decoration |
| Art | Sven Wickman | Set Decoration |
| Crew | Tony Epper | Stunt Double |
| Crew | Denny Arnold | Stunts |
| Crew | Orwin C. Harvey | Stunts |
| Crew | Paul Stader | Stunt Coordinator |
| Costume & Make-Up | John Chambers | Makeup Designer |
| Crew | Dick Hudkins | Stunts |
| Costume & Make-Up | Sharleen Rassi | Hairstylist |
| Crew | Mickey Gilbert | Stunts |
| Crew | Hank Calia | Stunts |
| Crew | Stan Barrett | Stunts |
| Costume & Make-Up | Daniel C. Striepeke | Makeup Supervisor |
| Crew | Dick Bullock | Stunts |
| Costume & Make-Up | Jan Van Uchelen | Hairstylist |
| Crew | Gary Epper | Stunts |
| Crew | Clyde Hudkins Jr. | Stunts |
| Costume & Make-Up | Peter R.J. Deyell | Makeup Artist |
| Crew | Nick Dimitri | Stunts |
| Crew | Alan Gibbs | Stunts |
| Crew | Kent Hays | Stunts |
| Crew | Jack Williams | Stunts |
| Crew | Eldon Burke | Stunts |
| Crew | Gene LeBell | Stunts |
| Directing | Fred R. Simpson | Assistant Director |
| Costume & Make-Up | Verne Langdon | Special Effects Makeup Artist |
| Costume & Make-Up | Edith Lindon | Makeup Artist |
| Costume & Make-Up | Morton Haack | Costume Designer |
| Crew | Terry Leonard | Stunts |
| Crew | Hubie Kerns Jr. | Stunts |
| Crew | Eddie Hice | Stunts |
| Crew | Walter Scott | 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 |
