How many movies have Addy Sung Gam-Loi and Hon Kwok-Choi acted in together?

They have worked on 8 movies together! Their first movie together was Winner Takes All! (1977) while their highest rated movie together was The Four Invincibles (1979). They have not worked together since Tough Ninja: The Shadow Warrior (1986). They are most known for their action films together.