How many movies have Andy Lau Tak-Wah and Natalis Chan Pak-Cheung acted in together?

They have worked on 16 movies together! Their first movie together was Twinkle, Twinkle, Lucky Stars (1985) while their highest rated movie together was No Risk, No Gain (1990). They have not worked together since From Vegas to Macau II (2015). They are most known for their comedy films together.