For authenticity, the film was shot on location in he South Pacific""s Tahiti, as well as on Catalina Island, Santa Barbara, and in MGM""s Culver City studios, over a period of three months.Both James Stewart""s performance and Kim Novak""s marvelous transformations - from Madeleine to Judy, and to Judy (pretending to be Madeleine) - are rarely matched in the history of cinema.When a torpedo was deployed by the aircraft, theRed Octoberreadied itself at battle stations, and Ramius successfully evaded it.She was Vole""s only alibi - but could not as the defendant""s wife be considered a credible witness.The twisting plot was masterful.As a surprise ""witness for the prosecution,"" Christine Helm/Vole WAS called to testify against him and cold-heartedly betray her husband.He announces the post office robbery: "Great news! Postoffice bin robbed! Dollar eighty-two cents in postage stamps, eighteen postal cards! Heavy loss to the gov""ment!"Chapter IV:One day of honeymoon before Anna starts home with her great secret.