How many movies have Eric Tsang Chi-Wai and Louis Yuen Siu-Cheung acted in together?

They have worked on 3 movies together! Their first movie together was Men Suddenly in Black 2 (2006) while their highest rated movie together was The Fortune Buddies (2011). They have not worked together since I Love You, You're Perfect, Now Change! (2019). They are most known for their comedy films together.