James Dean has an uncredited part as the boxing opponent's second.
The boxing scene was "written" by Jerry Lewis, who demanded an extra $50,000 for it, which he then donated to the Muscular Dystrophy Association.
When Corinne Calvet shows disdain for the advances of the sailors in the nightclub, the manager mentions that she was enamored with the club's former crooner who sang "Moonlight Becomes You," and suggests that Dean Martin's character's singing style might be a successful substitute. "Moonlight Becomes You" was a Bing Crosby standard, and Martin consciously tried to imitate Crosby early in his career.