At the crime scene, one of the detectives says the victim always bought his groceries with nothing "smaller that a $20 bill" and "all the bills were of a large, old-fashioned type that aren't in circulation anymore." The large-sized currency (50% bigger than current bills) was minted from 1861 to 1929.
I Wouldn't Be in Your Shoes (1948) was based on the novel I Wouldn't Be in Your Shoes by Cornell Woolrich (New York, 1943) with a screenplay by fellow pulp writer Steve Fisher. Woolrich's novel was based on a short story of the same title, which he published under the pseudonym William Irish, in a 1938 issue of "Detective Fiction Weekly."
Second film for producer Walter Mirisch, who would go on to win the Best Picture Academy Award for In the Heat of the Night (1967).
Penultimate film for director William Nigh, who began his film career as an actor and writer in 1913.
The viewed print included only the main title and the two stars' credits. All other credits were taken from material in the copyright registry and other contemporary sources.