How many movies have Jacky Yeung Tak-Ngai and Mona Fong Yat-Wah collaborated on?

They have worked on 3 movies together! Their first movie together was The Lady Is the Boss (1983) while their highest rated movie together was My Name Ain't Suzie (1985). They have not worked together since My Name Ain't Suzie (1985). They are most known for their comedy films together.