Jane Randolph was wanted for the role of Pat Cameron. However, she turned it down, as she was upset at being uncredited in Anthony Mann's previous picture, La brigade du suicide (1947). Claire Trevor eventually was cast.
In Harlan Ellison's post-apocalyptic novella on which Apocalypse 2024 (1975) is based, the main character goes to one of the few surviving movie theaters and watches Marché de brutes (1948). He lives in a world dominated by gangs and describes the movie: "Gangsters, mobs, a lot of punching and fighting. Real good."
According to Eddie Muller during his introduction of the film on TCM's "Noir Alley", this is one of only a few noir films narrated by a woman - in this case Claire Trevor, who he called the "Grand Dame" of film noir.
Ann's car is a 1946 Dodge Custom convertible coupe. New, it cost $1,649 (over $25,000 in 2022). In excellent condition, it can fetch over $50,000 at auction. Practically unchanged from the 1946 through 1949 model years, only 9,500 were made.
The vehicle stolen from the gas station is a 1948 Willys Jeep station wagon. It was all steel, but painted to look like a "woodie".