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 Harwood house. In testimony given by witnesses afterward, they disagreed about the precise location of the men before, during and after the gunfight. The coroner's inquest and the Spicer hearing produced a sketch showing the Cowboys standing, from left to right facing Fremont Street, with Billy Clanton and then Frank McLaury near the Harwood house and Tom McLaury and Ike Clanton roughly in the middle of the lot. Opposite them and initially only about away, Virgil Earp was on the left end of the Earp party, standing a few feet inside the vacant lot and nearest Ike Clanton. Behind him