How many movies have Joseph Kuo and Polly Shang-Kuan Ling-Feng collaborated on?

They have worked on 5 movies together! Their first movie together was The Swordsman of All Swordsmen (1968) while their highest rated movie together was The 18 Bronzemen (1976). They have not worked together since Immortal Warriors (1978). They are most known for their action films together.