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
Warner Bros., Goldcrest and Kingsmere present ; an Enigma production in association with Fernando Ghia ; directed by Roland Joffé ; produced by Fernando Ghia and David Puttnam ; original story and screenplay by Robert Bolt
Olive Films ; una coproduzione PEA-Produzioni Europee Associate, Les Productions Artistes associés S.A., Artemis Film GMBH ; Alberto Grimaldi presenta un film di Bernardo Bertolucci ; regia di Bernardo Bertolucci ; soggetto e sceneggiatura di Franco Arcalli, Giuseppe Bertolucci, Bernardo Bertolucci ; prodotto da Alberto Grimaldi