A controversial work at the time, the United States government suppressed it for over 30 years after it was produced.
The filmmakers did not ask for nor receive permission to film patients from the patients themselves at any point.
Additional title screen - "The United States Army Presents PMF 5019 (War Office seal) MCMXLVIII (1948)". PMF stands for "Professional Medical Film," part of a series produced by the U.S. Army on various topics of military medicine from the late 1940s through the 1960s.