At about the 8:00 minute mark, when Charlton Heston is donning a disguise as a priest he observes that he "looks like something out of the Ten Commandments." Six years earlier, Heston starred in the epic, The Ten Commandments (1956).
Salvatore Baccaloni's last film.
Working title was "The Easter Dinner."
Director Melville Shavelson had originally wanted Bob Hope for the lead.