How many movies have Kwok Wai-Kwok and Ronald Cheng Chung-Kei acted in together?

They have worked on 2 movies together! Their first movie together was It's a Wonderful Life (2007) while their highest rated movie together was All's Well, Ends Well 2009 (2009). They have not worked together since All's Well, Ends Well 2009 (2009).