'The Talented Mr. Ripley' (1999)
The dark themes in the movie (um, a poor man ingratiates himself into a rich man's social circle, becomes obsessed, and—spoiler alert—murders the guy?) are offset by the fact that the movie is just so stylish and sexy. The setting and the lavish lifestyle of the young and wealthy, combined with the gorgeous actors swanning around in linen, makes this film just as beautiful as it is macabre.
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