I can't recommend Body Heat without advising you to also see the Double Indemnity, just so you can compare. This is often considered one of the best movies ever made, and the film that created so many of the standard tropes used in noirs forever after- not to mention Barbara Stanwyck's alluring and deceitful Phyllis Dietrichson, one of the original femme fatales. Stanwyck in her day was considered the consummate pro- somebody who could easily move back and forth between screwball comedy, tearjerker, soap opera, and here she showed she could even be a spellbinding sex symbol who pulls Fred MacMurray into her web with ease. This film was written and directed by the great Billy Wilder, and co-written with Raymond Chandler of all people, from the book by James M. Cain. No true film buff can afford to miss this one- it's too iconic.
Original 1944 Trailer:
