![Arnold Schwarzenegger](http://image.tmdb.org/t/p/w92/dgp6aeBeKif0zOEFZDggovsL6Zh.jpg)
Pumping Iron is a 1977 documentary film about the run-up to the 1975 Mr. Olympia bodybuilding competition. The film focuses on Arnold Schwarzenegger and his competitors, Lou Ferrigno and Franco Columbu. The documentary was co-directed by Robert Fiore and George Butler. It was based on the book of the same name by Charles Gaines and George Butler (Simon and Schuster, 1974).