I don't know, but why does Hong Kong always make these crime films? It's been over done so many many times why can't they take note from Korean Cinema? These Hong Kong crime drama is such an old genre that nobody watches any more. They over done it and it's becoming boring typical of Hong Kong to make these kind of crime films which nobody really cares for. Why waste good talent with these films. I'm serious, every film coming out of Hong Kong and China has just been really stale. The ideas are stale and the this film is stale. I wish they rethink about their way of filmmaking. The next wave is Korean cinema which is refreshing and full of surprises. I hope they learn a lesson from it! Stop making pointless cop drams that nobody watches or cares about!!!