Stuntman Russell Saunders broke and did permanent damage to his arm falling fifty feet (15 meters) into a lake while doubling for Richard Widmark.
Although Katy Jurado played Robert Wagner's mother in the film, she was only six years older than he.
The screenplay of the film was inspired by another movie: La maison des étrangers (1949), written by Philip Yordan. However, the screenplay was written by Richard Murphy, while Yordan received an Academy Award for Best Writing, Motion Picture Story.
Dolores Del Río was considered for the role of Señora Devereaux, but she was replaced after she couldn't secure a U.S. visa in time.