Italian film critic and historian Roberto Curti stated that production details of the film were "shady if not contradictory". These include the identity of the director of the film. Among the different hypotheses of who directed the film included Spanish actor Ramiro Olvieros and producer Oscar Brazzi, cinematographer
Mario Mancini, producer
Dick Randall and screenwriter William Rose. The Italian copyright agency SIAE certified that director Robert H. Oliver was a pseudonym of Mancini. Actor
Gordon Mitchell contradicts this, saying that the director was Robert Oliver, while the actress Simone Blondell recalled only that the director "spoke English, he wasn't Italian" Among the crew, assistant director Gianlorenzo Battaglia denied Mancini directed the film, stating that "the American director left the film because of disagreements with the producer, and so Mario finished it on his own. I'm not 100% sure though!" The film was shot in late 1972 and finished in early 1973. ==Release==