Fritz Lang originally wanted the actress portraying Venus to be completely nude. When the first take was completed, he didn't like how the woman's pubic hair looked, and ordered her to shave it off. The actress indignantly refused, sending Lang into a tantrum. Eventually, a compromise was reached when a small strip of cloth was draped over the offending hair. This scene was predictably removed from the revival versions that circulated throughout the 1940s, 1950s and 1960s, and has only recently been part of the film in the rare showings of the Fritz Lang archives' complete copy of Dr. Mabuse.
The car seen in the first few minutes of the film, during the train robbery, is 1911 Brennabor Landaulet Typ F. This manufacturer was the biggest in Germany for part of the twenties, to be surpassed eventually by Opel. Automobile production was suspended by the early thirties. The company went back to producing baby carriages, bicycles, and motorcycles. The company was finally dismantled in 1945.