produced by Arnon Milchan ; screenplay by Sergio Leone, Leonardo Benvenuti, Piero De Bernardi, Enrico Medioli, Franco Arcalli [and others] ; directed by Sergio Leone
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]