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.
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.
"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.
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.