What is your favorite Martial arts film you have seen?

I cannot get enough of martial arts films, i trained in martial arts fighting for many years, and just have a soft spot for these films.....whats your favorite martial arts film, and why?
Update: Defendero you spoil me, just by mentioning one of my all time favorites which is none other than Ong Bak Thai Warrior, this film is wicked! when i first saw it, i could not believe how good it was, and watched it several times more and still could not get enough.
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