How many movies have Lai Sing-Kwong and Peter Cheung Yiu-Chung collaborated on?

They have worked on 5 movies together! Their first movie together was Project A: Part II (1987) while their highest rated movie together was The Legend of Drunken Master (1994). They have not worked together since The Legend of Drunken Master (1994). They are most known for their action films together.