While the crew was setting up to film a hitchhiking scene, a passing car tried to pick up Ann Savage (made up to look dirty and disheveled), causing the crew to break out laughing.
The budget PRC gave director Edgar G. Ulmer for this film was so small that the 1941 Lincoln Continental V-12 convertible (model 56) driven by Charles Haskell was actually Ulmer's personal car.
According to Ann Savage, she and Tom Neal did not get along during filming. Savage stated that Neal embarrassed her on the set by putting his tongue in her ear. She retaliated by slapping his face as hard as she could. After that incident, they did not speak to each other except when filming scenes.
Was the first "B" movie chosen by the Library of Congress for preservation in its National Film Registry, in 1992.
The sweater worn by Ann Savage in the earlier parts of the film was yellow and belonged to Shirley Ulmer, the film's script clerk and the wife of the director. The sweater was actually a bit loose on Savage and had to be pinned in certain places so as to fit the actress more snugly. Clothespins can be seen in some shots, especially in the 2018 restored version.