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Although a July 1959 Hollywood Reporter news item notes that Anne Bancroft was to play the female lead, and an Los Angeles Examiner news item adds that offers were made to Fredric March and Richard Widmark to play the two top male leads, none of these actors appeared in the film. A February 1959 Los Angeles Examiner news item notes that Stewart Granger and Jean Simmons were also considered for the leads. Although May Britt is listed in an early Hollywood Reporter production chart, she does not appear in the released film. A Hollywood Reporter production chart places Thayer David in the cast, but his appearance in the released film has not been confirmed. The Variety review states that backgrounds were filmed at the French Riviera and Monte Carlo, Monaco.