How many movies have Dicky Cheung Wai-Kin and William So acted in together?

They have worked on 5 movies together! Their first movie together was The Big Four World Tour Live In HK (2010) while their highest rated movie together was 雷颂德THANK YOU演唱会 (2013). They have not worked together since 雷颂德THANK YOU演唱会 (2013).