Director Ang Lee (Crouching Tiger, Hidden Dragon) returns to China for this lugubrious 1942-set spy drama. Tony Leung (Hard-Boiled) is a Shanghai official working with the occupying Japanese. Pretty newcomer Tang Wei is a resistance agent who gets close to him by acting the seductress. There's a whole heck of a lot of explicit sex going on (hence the rating), but the drama never pushes past melo. In Mandarin with English subtitles. 148 minutes NC-17.