Just read the book, how's it compare?

I read the book, and I've just watched the 1946 version, and this one (as well as an Italian 1942 adaptaion, Ossessione). The Rafelson version is fantastic, and by far the truest to the spirit of the book. In the other two versions, the link between the violence and passion in Cora and Frank's relationship isn't adequately made. Although Mamet's screenplay departs more from the strict plot of the novel, the freedom from censorship - and the excellent acting of Lange and Nicholson - make it more than worthwhile. I was utterly compelled.

The 1981 version is the most faithful to the book. It is propelled by incendiary performances from Nicholson and Lange. It has been a long time since I read the book, but IIRC, what changes were made are relatively minor.

The 1946 version is heavily sanitized -- the censors worked overtime on it. John Garfield is terrific as Frank but IMO, Lana Turner doesn't come across as quite carnal and visceral enough, although her wardrobe shows off her pouty sexuality to the max. Many, many changes dicated by the Production Code dilute the story; Garfield's narration was designed to fill in some of the blanks. If you watch it for what it is, without any knowledge of the source, I think the 1946 version is still entertaining (albeit a bit confusing in the 3rd act with all the double-crossing).

The Italian version, Visconti's Ossessione (1942) is next up in my Netflix queue. That one will begin a sojourn through lesser-known film noir.

And of course, Double Idemnity (1944) and Body Heat (1981) among many other films, owe a huge debt to Cain's original story. Bumping off hubby for the insurance money is a perennial theme, but I can't think offhand of a film where the lovers get away with it.

I'm planning to see the 1981 version and wondering the same thing.
In my opinion,Jack Nicholson was miscast as Frank because he always looks smarter than him. He is the Sacket type,I think.

The book is better. More gripping. A page turner. I never watch a movie until I've read the book, if available. First book, then movie, in that order. The movie was somewhat boring, although the two leads were great, as was Katz, the lawyer.