Capt. Robert H. Wise, who lost 90 pounds in a North Korean POW camp, served as the film's technical advisor and attested that all the torture scenes in the movie were based on actual incidents.
No female is seen or heard in this movie, except as dancers in a movie shown to the camp.
The New York opening occurred on May 8, 1954, at the Victoria Theater on Times Square.
The button-down-the-side Chinese jacket that Dewey Martin wears in two scenes with Oscar Homolka was originally worn by Paul Muni in The Good Earth (1937).