a Metro-Goldwyn-Mayer picture produced by Loew's Incorporated ; directed by Norman Taurog ; produced by Jack Cummings ; screenplay by Leon Gordon and George Oppenheimer
the Ladd Company thru Warner Bros. ; a Warner Communications Company ; Arnon Milchan presents a film by Sergio Leone ; director, Sergio Leone ; producer, Arnon Milchan ; writer, Stuart Kaminsky ... [and others]
Warner Bros. presents an Irwin Winkler production ; a Martin Scorsese picture ; executive producer, Barbara De Fina ; screenplay by Nicholas Pileggi & Martin Scorsese ; produced by Irwin Winkler ; directed by Martin Scorsese