How many movies have Dickson Poon Dik-Sang and John Shum Kin-Fun collaborated on?

They have worked on 8 movies together! Their first movie together was Mr. Boo Meets Pom Pom (1985) while their highest rated movie together was An Autumn's Tale (1987). They have not worked together since Fury (1988). They are most known for their action films together.