Five Fingers of Death (or King Boxer) is a 1972 kung fu film starring Lo Lieh, whose name I'm unfamiliar with.
watch it here via youtube:
There seems to be a problem with the framing in this video. The tops of heads -amd sometimes entire heads- are often not visible on the screen. The film is enjoyable even so, but it is a distraction.
DVD Talk says, "when it comes to kung fu films in the United States, none, if any, have had the incredible impact of King Boxer" and "there is no denying the merit or historical importance of King Boxer". It has a score of 80% at Rotten Tomatoes.