Lust, Caution (2007)

2h 38m · Directed by Ang Lee

Starring Tony Leung Chiu-wai, Tang Wei, Joan Chen, Leehom Wang, Tou Tsung-hua

During World War II, a secret agent must seduce, then assassinate an official who works for the Japanese puppet government in Shanghai. Her mission becomes clouded when she finds herself falling in love with the man she is assigned to kill.