If pressed to name my favorite film score composer working today, my reflexive answer would be Alexandre Desplat. His latest for Lust, Caution lives up to his previous work. I was more taken with the score than the story adaptation, though it is the first movie I can recall that reveals hidden depths to shoe who are well-versed in the rules and strategy of Mah Joong. There are hidden clues in the moves and tiles in the game that only a fraction of viewers will understand.
Perhaps that subtlety is the movie's chief flaw, that it keeps too much under wraps for too long until the main actors, Tony Leung and Tang Wei, are literally unwrapped on screen in some athletic love scenes. It can't help but sound prurient, but the love scenes are the most emotionally complex in the movie.