How many movies have Lau Siu-Kwan and Wong Yeung-Tat collaborated on?

They have worked on 3 movies together! Their first movie together was 72 Tenants of Prosperity (2010) while their highest rated movie together was I Love Hong Kong 2011 (2011). They have not worked together since The Fortune Buddies (2011). They are most known for their comedy films together.