Trivia

When the fight appeared in the newspapers it was referred to as “Street-fight in Tombstone”.
--Source: Inventing Wyatt Earp: His Life and Many Legends, Page 388

Vincent Price was considered for the role of Doc Holliday.

John Ireland, who plays Billy Clanton in My Darling Clementine, played Johnny Ringo in Gunfight At The OK Corral.

According to Henry Fonda in 1976 Darryl F. Zanuck's first choice for Doc Holliday was James Stewart but he was overruled by John Ford who didn't believe Stewart could do the part.

An alternate "preview" version of this film exists. In the 1970s, 20th Century Fox donated some film to the UCLA Film Archives. In 1994, it was discovered that the UCLA print was different from the one being shown on TV. It was about 8 minutes longer with minor variations throughout and a slightly different ending. Both this archival 103 or 104 minute version and the 97 minute release version are included on the Fox DVD released on January 6, 2004.

Tombstone, Arizona, is not located in Monument Valley. John Ford placed it there because Monument Valley is where he liked to film his Westerns.

Director John Ford, who in his youth had known the real Wyatt Earp, claimed the way the OK Corral gunfight was staged in this film was the way it was explained to him by Earp himself, with a few exceptions.

On 28 April 1947 Henry Fonda and Cathy Downs starred in a live radio version of this film, broadcast on the Lux Radio Theatre.

This film was selected to the National Film Registry, Library of Congress, in 1991.

Actress Jeanne Crain was scheduled to play Clementine. Studio head Darryl F. Zanuck ruled against her, writing in a memo that the part was so small, Crain fans might be disappointed by not seeing her in more scenes. That's how contract player Cathy Downs got the part instead.

Henry Fonda's first production after returning from U.S. Navy service in World War II.

Oh My Darling, Clementine is an American western folk ballad (1884).

Wyatt Earp and his wife Josephine settled in Los Angeles when he was in his 60s, and he spent a lot of time hanging around movie sets, trying to convince someone to film his then nearly forgotten story.
--Source: Wyatt Earp, Page 1907

Wyatt is depicted as being the town marshal of Tombstone, and Virgil and Morgan as his deputies. In fact, Virgil was the town marshal (according to some sources, his actual title was "chief of police"), and Morgan and Wyatt were his deputies.

Doc Holliday is shown critically wounded and dying by the end of the gunfight. He survived in real life with a minor bruise and lived for years afterward, dying in Colorado in 1887 from tuberculosis.

The gunfight is portrayed as an epic, street-wide running battle lasting minutes. In fact the fight lasted no longer than 30 seconds.