Joint Security Area

Directed by Park Chan-wook (Old Boy, Sympathy for Mr./Mrs. Vengeance), this film details various versions of the same story (an incident between four guards at the DMZ between South and North Korea), told from different perspectives and through different levels of truth and lies, as an investigation takes place.

It's very compelling to watch, beautifully shot and acted, with moments of real pathos and humor. Highly recommended.