The first half of Bob Rafelson's 1981 The Postman Always Rings Twice promises to be the best-ever adaptation of Cain's novel, with the right of mix of sleaziness, sweatiness and desperation. The second half is a trainwreck.
My review: https://dfordoom-movieramblings.blogspot.com/2023/11/the-postman-always-rings-twice-1981.html