Tie san jiao (1972)

This movie seems to be available in digital form from an old laser disk release so the resolution is widescreen and it has subtitles. The plot is one of the favorite four plots of all martial arts movies 1) revenge, 2) the karate kid, 3) the big tournament, and 4) not allowed to fight. Our hero, rickshaw driver, is not allowed to fight on orders from his master. All sorts of situations come up where it would be reasonable to break that rule. It quickly gets to the point where it is total stupidity not to fight. But rickshaw guy obeys his master until his master says now it is the time to fight. If you can put up with all that nonsense going on with the story you will surely enjoy the fights. This movie is noteworthy because it has a title that makes sense, unlike 99% of all martial arts movies. The triangle duel is the final fight when rickshaw guy takes on another Chinese who is skilled in iron body and a Korean known for kicks. I rate it just above average for the fights alone.