How many movies have Chow Shao-Lung and Sze-To Cheuk-Hon collaborated on?

They have worked on 9 movies together! Their first movie together was Zu: Warriors from the Magic Mountain (1983) while their highest rated movie together was Scared Stiff (1987). They have not worked together since Spooky, Spooky (1988). They are most known for their comedy films together.