Year: 1971
Studio: Tritone Cinematografica, Hercules Associated Entertainment, Juan de Orduña, P.C., Terra-Filmkunst
Director: Duccio Tessari
Cast: Franco Nero, Eli Wallach, Lynn Redgrave, Horst Janson, José Moreno, Eduardo Fajardo
Crew: Duccio Tessari (Director), Günter Ebert (Screenplay), Dino Maiuri (Screenplay), Juan de Orduña (Screenplay), Lewis B. Patten (Novel), Massimo De Rita (Screenplay)