The subway station scene was filmed in the then-closed Court Street IND station. It was taken out service in 1946 and since 1976 is the home of the NYC Transit Museum.
Once thought to be a lost movie, it was restored in 2019 by Nicolas Winding Refn's company, byNWR, from the discovered only known print held at the British Film Institute.
The character Varkas, portrayed by J. Edward Bromberg, says he is not in good shape and that he has a condition, patting himself near his heart. The year after this film was released, Bromberg himself would suffer a fatal heart attack just a few weeks shy of his 48th birthday.
The $200,000 that Smitty offers to Max would be equivalent to over $2.3 Million in 2021.