After his last two English-language films garnered completely different reactions from audiences (Hulk was a bomb, whereas Brokeback Mountain was last year's Oscar darling), Ang Lee is leaving his Wyoming-based gay cowboys for a WWII-era espionage thriller set in Shanghai.

Based on the 26-page short story by Chinese writer Eileen Chang, Lust, Caution "follows a group of patriotic students who plot to assassinate the intelligence chief in the Japanese-backed Chinese government." Having already signed Tony Leung Chiu Wai to play the intelligence chief in question, Mr. Yi, popular actress (and formerly known as the "Elizabeth Taylor of China") Joan Chen has now come onboard to act as his wife. Newcomer Tang Wei also stars as the student who seduces Yi in an effort to set up the assassination.