How many movies have Kara Wai Ying-Hung and Nau Nau acted in together?

They have worked on 5 movies together! Their first movie together was The Dream of the Red Chamber (1977) while their highest rated movie together was Invincible Shaolin (1978). They have not worked together since The Brave Archer 3 (1981). They are most known for their drama films together.