"The Screen Guild Theater" broadcast a 30 minute radio adaptation of the movie on June 16, 1947 with Lana Turner and John Garfield reprising their film roles.
Lana Turner said that her turn as Cora Smith was "the role I liked best".
Joel McCrea turned down the role of Frank Chambers.
After the first murder attempt, Nick is hospitalized in Blair General Hospital, also the locale for MGM's Dr. Kildare franchise.
As a contrast to the fact she's playing an inherently evil character, Lana Turner wears white throughout the film.
It took 12 years to adapt the explicit material (by 1940 standards) of the novel into a screenplay tame enough to comply with the Production Code prevalent at the time.
This caused a stir amongst 1940s audiences who were shocked when it seemed clear to them that John Garfield uses his tongue in one of his kissing scenes with Lana Turner.
This Hollywood movie was made and released about thirty-five years before its Hollywood remake, The Postman Always Rings Twice.
This is the third version of "The Postman Always Rings Twice" novel. The first was French, Le dernier tournant whilst the second was Italian, Ossessione. The fourth was The Postman Always Rings Twice. As such, this 1946 film was the first English language version but was the third version in black-and-white as both earlier versions were not in colour.
This movie's title has often erroneously been referred to as The Postman Always Knocks Twice.