Planet of the Apes is a 1968 American science fiction film directed by Franklin J. Schaffner. It stars Charlton Heston, Roddy McDowall, Kim Hunter, Maurice Evans, James Whitmore, James Daly and Linda Harrison. The screenplay by Michael Wilson and Rod Serling was loosely based on the 1963 French novel La Planète des Singes by Pierre Boulle. Jerry Goldsmith composed the groundbreaking avant-garde score. It was the first in a series of five films made between 1968 and 1973, all produced by Arthur P. Jacobs and released by 20th Century Fox.

The film tells the story of an astronaut crew who crash-lands on a strange planet in the distant future. Although the planet appears desolate at first, the surviving crew members stumble upon a society in which apes have evolved into creatures with human-like intelligence and speech. The apes have assumed the role of the dominant species and humans are mute creatures wearing animal skins.

The script, originally written by Serling, underwent many rewrites before filming eventually began. Directors J. Lee Thompson and Blake Edwards were approached, but the film’s producer Arthur P. Jacobs, upon the recommendation of Charlton Heston, chose Franklin J. Schaffner to direct the film. Schaffner’s changes included an ape society less advanced—and therefore less expensive to depict—than that of the original novel. Filming took place between May 21 and August 10, 1967, in California, Utah and Arizona, with desert sequences shot in and around Lake Powell, Glen Canyon National Recreation Area. The film’s final “closed” cost was $5.8 million.

The film was released on February 8, 1968, in the United States and was a commercial success, earning a lifetime domestic gross of $32.6 million. The film was groundbreaking for its prosthetic makeup techniques by artist John Chambers and was well received by critics and audiences, launching a film franchise, including four sequels, as well as a short-lived television show, animated series, comic books, and various merchandising. In particular, Roddy McDowall had a long-running relationship with the Apes series, appearing in four of the original five films (absent, apart from a brief voiceover, from the second film of the series, Beneath the Planet of the Apes, in which he was replaced by David Watson in the role of Cornelius), and also in the television series.

The original series was followed by Tim Burton‘s remake Planet of the Apes in 2001 and the reboot series begun by Rise of the Planet of the Apes in 2011. Also in 2001, Planet of the Apes was selected for preservation in the United States National Film Registry by the Library of Congress as being “culturally, historically, or aesthetically significant”.