How many movies have Melvin Wong Gam-Sam and Tina Lau Tin-Lan acted in together?

They have worked on 3 movies together! Their first movie together was Night Caller (1985) while their highest rated movie together was Twinkle, Twinkle, Lucky Stars (1985). They have not worked together since The Banquet (1991). They are most known for their comedy films together.