How many movies have Alex Fong Lik-Sun and William So acted in together?

They have worked on 5 movies together! Their first movie together was Astonishing (2004) 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). They are most known for their comedy films together.