Paramount Pictures Corporation, Rafran Cinematografica, San Marco Productions ; produced by Fulvio Morsella ; screenplay by Sergio Donati and Sergio Leone ; from a story by Dario Argento, Bernardo Bertolucci and Sergio Leone ; directed by Sergio Leone
Metro-Goldwyn-Mayer ; Loew's Incorporated ; producer, Jack Cummings ; screenplay by Albert Hackett & Frances Goodrich and Dorothy Kingsley ; directed by Stanley Donen
National General Pictures ; written by James Lee Barrett ; produced and directed by Gene Kelly ; Firecreek / Warner Bros. Pictures ; produced by Philip Leacock ; directed by Vincent McEveety ; written by Calvin Clements
Metro Goldwyn Mayer ; United Artists presents William Wyler's production ; screenplay by James R. Webb & Sy Bartlett, Robert Wilder ; adaptation by Jessamyn West & Robert Wyler ; produced by William Wyler & Gregory Peck ; directed by William Wyler
Warner Bros. Entertainment & Legendary Pictures ; a Mad Chance-Weed Road production ; director, Jimmy Hayward ; producers, Akiva Goldsman, Andrew Lazar ; screenplay Neveldine & Taylor
Warner Bros. Pictures and C.V. Whitney Pictures ; produced by Merian C. Cooper ; screenplay by Frank S. Nugent, from the novel by Alan LeMay ; directed by John Ford