] Although the popular song had no relation to the movie, its concurrent release and rampant play on the radio helped to create market recognition.The film""s tagline expressed the major heme:The first casualty of war is innocence.The war film opened with the new recruit""s confusion, extreme exhaustion, and fear of the chaos and threats of death that were inflicted upon him after his arrival in Vietnam.Both Gary Cooper and Jean Arthur would again work for Capra in more films:You Can""t Take It With You (1938)Mr.After Evelyn suggested that they should get to Karnak first to learn the next location, Rick remarked: "Seems to me like we need a magic carpet.