How many movies have Kitty Chung Kit-Yee and Ronnie Cheung Ho-Lung acted in together?

They have worked on 3 movies together! Their first movie together was Money Suckers (2002) while their highest rated movie together was Troublesome Night 15 (2002). They have not worked together since Troublesome Night 18 (2003). They are most known for their horror films together.