How many movies have Sammo Hung Kam-Bo and Yu Jim-Yuen acted in together?

They have worked on 3 movies together! Their first movie together was The Princess and the 7 Little Heroes (1962) while their highest rated movie together was The 7 Tyrants of Jiangnan (1962). They have not worked together since The Rainbow Pass (1964). They are most known for their action films together.