The Evans-Childers Circus shown in the film was a real circus. Although little can be found about the history of the show, its posters occasionally come up for auction.
Final film of Cleo Moore, who died in 1973, and the last of seven films she made with Hugo Haas that were released from 1952 to 1957. She gained popularity earlier in the 1950s in B-movie film noirs released by Columbia Pictures, for whom she was a contract player.
The convertible that Julie Hilmer (Cleo Moore) drives is English, specifically a 1952 Sunbeam-Talbot 90 Drophead Coupé. The car that Frank (Vince Edwards) assembles to run down Gus (Hugo Hilmer) is a 1946 Oldsmobile 70 Dynamic Cruiser Four-Door Sedan. Near the end of the movie, Miranda the Lion Tamer (Dolores Reed) drives a1955 Ford Fairlane Sunliner Convertible.