How many movies have Jeffrey Lau Chun-Wai and Ng Yuk-Gan collaborated on?

They have worked on 2 movies together! Their first movie together was A Chinese Odyssey Part One: Pandora's Box (1995) while their highest rated movie together was A Chinese Odyssey Part Two: Cinderella (1995). They have not worked together since A Chinese Odyssey Part Two: Cinderella (1995).