How many movies have Jameson Lam Wa-Fan and Yip Wai-Ying collaborated on?

They have worked on 10 movies together! Their first movie together was Troublesome Night 12 (2001) while their highest rated movie together was Crazy for Pig-Bone in Pot (2001). They have not worked together since Troublesome Night 19 (2003). They are most known for their comedy films together.