How many movies have Anita Yuen Wing-Yee and Aubrey Lam Oi-Wah collaborated on?

They have worked on 4 movies together! Their first movie together was Heaven Can't Wait (1995) while their highest rated movie together was Who's the Woman, Who's the Man? (1996). They have not worked together since Love Trilogy (2004). They are most known for their drama films together.