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
TriStar Pictures in association with Japan Satellite Broadcasting, Inc. ; IndieProd production ; written by Simon Moore ; produced by Joshua Donen, Allen Shapiro, Patrick Markey ; directed by Sam Raimi
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
Warner Bros. and Sanford Productions Inc. ; produced and directed by Mark Rydell ; screenplay by Irving Ravetch & Harriet Frank, Jr. and William Dale Jennings