United Artists presents a film produced by Alberto Grimaldi ; screenplay by Age [Agenore Incrocci], Scarpelli [Furio Scarpelli], Luciano Vincenzoni and Sergio Leone ; English version by Mickey Knox ; directed by Sergio Leone
Joseph M. Schenck presents ; a United Artists production ; written and directed by Buster Keaton and Clyde Bruckman ; adapted by Al Boasberg and Charles Smith
United Artists Pictures ; the Mirisch Company ; written for the screen by John Lee Mahin and Martin Rackin ; a Mahin-Rackin production ; directed by John Ford