How many movies have Aubrey Lam Oi-Wah and Eric Tsang collaborated on?

They have worked on 3 movies together! Their first movie together was The Age of Miracles (1996) while their highest rated movie together was Who's the Woman, Who's the Man? (1996). They have not worked together since Men Suddenly in Black 2 (2006). They are most known for their drama films together.