How many movies have Chow Yun-fat and Wong Kwan-Yuen acted in together?

They have worked on 3 movies together! Their first movie together was The Eighth Happiness (1988) while their highest rated movie together was All About Ah-Long (1989). They have not worked together since The Fun, the Luck & the Tycoon (1990). They are most known for their comedy films together.