un film di Pier Paolo Pasolini ; produttore esecutivo, Franco Rossellini ; una coproduzione PEA Produzione Europee Associate, Les Productions Artistes associes, Artemis Film ; prodotto da Alberto Grimaldi ; scritto e diretto da Pier Paolo Pasolini
Metro-Goldwyn-Mayer Pictures presents in association with Spelling Films, a Trilogy Entertainment Group production ; produced by John Watson, Richard B. Lewis, Pen Densham ; screen story and screenplay by Pen Densham ; directed by Pen Densham
ABC Pictures Corp. presents ; a Daniel Melnick production ; a film by Sam Peckpinpah ; produced by Daniel Melnick ; screenplay by David Zelag Goodman and Sam Peckinpah ; directed by Sam Peckinpah