How many movies have Gillian Chung and Vincy Chan acted in together?

They have worked on 3 movies together! Their first movie together was Naraka 19 (2007) while their highest rated movie together was 英皇娱乐15周年群星演唱会 (2015). They have not worked together since 英皇娱乐15周年群星演唱会 (2015).