Hour of the Gun accuracy than most motion picture accounts of the events and is based on the non-fiction book "Tombstone's Epitaph" by Douglas D. Martin, with a screenplay by Edward Anhalt. In "Hour of the Gun" Ike Clanton is shown, correctly, to have survived the Gunfight at the O.K. Corral, whereas previous films had him killed at the gunfight. Outnumbered but determined, Wyatt Earp (James Garner), his brothers Virgil (Frank Converse) and Morgan (Sam Melville) and ally Doc Holliday (Jason Robards) confront and clearly get the best of the Ike Clanton gang in a violent shootout at the O.K. Corral in the Arizona
Gunfight at the O.K. Corral came to each other's aid. Virgil Earp thought that some of the Cowboys had met at Charleston, Arizona, and taken "an oath over blood drawn from the arm of Johnny Ringo, the leader, that they would kill us." Among the lawmen involved in the O.K. Corral shooting, only Virgil had any real experience in combat, and he had far more experience than any of his brothers as a sheriff, constable, and marshal. The Earps' work as lawmen was not welcomed by the Cowboys, who viewed the Earps as badge-toting tyrants who ruthlessly enforced the business interests of the town. In