What I did not know before watching this but that I soon realized is that the movie "The Departed" is a remake of this Hong Kong film. I really like the Asian movie industry and this is yet another great Hong Kong flick. The story is solid, the acting is great and the directing is high quality. As normal with movies with non speaking cast where I have to read the subtitles the story and plot can be hard to follow at times. However this was not that hard to follow and I believe I understood most of it. The cultural difference may have influenced my understanding, but I very much enjoyed to watch the movie and that is after all the most important aspect.
My interest in foreign movies is growing day by day and I try to watch as many as I can. I rate this 8/10 and hope I will find a lot more quality Asian films in the future.