How many movies have Walter Tso Tat-Wah and Yiu Yau-Hung acted in together?

They have worked on 3 movies together! Their first movie together was The Family Strikes Back (1986) while their highest rated movie together was Mr. Vampire II (1986). They have not worked together since Kung Fu Vs. Acrobatic (1990). They are most known for their comedy films together.