It may be possible that the cultural difference makes me rate it lower than I would, say, an American film, but really, what a long, boring, pretentious, often ridiculous film!
First you have the two protagonists, Japanese pop singers, both dyed blond, Gackt (please attempt to ignore the name sounds like something a Klingon would eat) wearing blue contact lenses, trying to look cooler than God. I could buy that. Then there is the story setting: somewhere in a fictional Chinese city where a blend of poor Japanese immigrants and Taiwanese and Chinese people live and fight each other. I could buy that, too.
Now it gets ridiculous: all of this is set in the future (2025-2045) and one of the rising gangsters is a vampire. Does that mean we see cool gadgets, special effects, even vampire teeth? No. The whole story could have been set in the 1980's for all the tech and cars. Then there are the gun fights: long coated heroes stand in the middle of rooms and shoot from akimbo guns without moving (or even aiming). Occasionally, they remain out of ammo and reload their guns by throwing ammo clips to one another.
The thing is that if you ignore the vampire angle (which is very very easy, since not much of the lore is used in the film) and the future angle (which is also very easy: just remove the two captions showing the year), then the movie becomes a coming of age, clan gang story. The Godfather this is not, of course, but for that genre and allowing for Asian weirdness and removing about 30 minutes from it, the movie could have fought for an average rating, but as such it is a pretentious borefest.
Update: after reading the reviews of other people I can say with almost certainty that its rating was artificially raised by fakers.
