Amateur and professional bodybuilders prepare for the 1975 Mr. Olympia and Mr. Universe contests as five-time champion Arnold Schwarzenegger defends his Mr. Olympia title against Serge Nubret and the shy young Lou Ferrigno.
Is Pumping Iron on Netflix? Yes! The movie Pumping Iron is now on Netflix in the countries listed below.
| Directing | George Butler | Director |
| Directing | Robert Fiore | Director |
| Writing | Charles Gaines | Writer |
| Writing | George Butler | Writer |
| Production | George Butler | Producer |
| Production | Jerome Gary | Producer |
| Sound | Michael Small | Music |
| Camera | Robert Fiore | Director of Photography |
| Editing | Geof Bartz | Editor |
| Editing | Lawrence Silk | Editor |
| Sound | Francis Daniel | Sound |
| Sound | Lee Dichter | Sound Mixer |
| Sound | Harry Lapham | Sound |
| Sound | Hugh Little | Sound |
| Sound | Joan Weidman | Sound |
| Lighting | John Isaacs | Electrician |
| Crew | Larry Shaw | Thanks |
| Camera | Joan Churchill | Camera Operator |
| Camera | Jerry Cotts | Camera Operator |
| Camera | Robert Leacock | Camera Operator |
| Camera | Robby Wald | Camera Operator |
| Camera | John Karol | Camera Operator |
| Camera | Eric Darstead | Camera Operator |
| Camera | Jim Signorelli | Camera Operator |
