2002. dir. Wai-keung Lau and Alan Mak, starring Andy Lau, Tony Leung, Anthony Wong, Eric Tsang. Cantonese with subtitles.
Seen it before? No
Sam pretty much covered all the similarities between this movie and The Departed. We watched it with the English subtitles so you had to pay attention. Good thing too because it would have been pretty confusing otherwise. Yan and Lau are Costigan (DiCaprio) and Sullivan (Damon). They both work for the police or investigations. They both are in Sam's (think Nicholson) pocket...one working for Sam through the police, the other working for the police through Sam. The lack of an extra hour does make it hard to distinguish who the secondary players (in the gang and the police department anyway) are but if you have seen The Departed then you can pretty much figure out who plays whom.
See it or don't. It's fascinating to see the differences and the similarities in the two movies.
See it again? Yeah, I'd see it again.
Own it? Why should I when I own The Departed?