How many movies have Carina Lau and Tony Leung Chiu-wai acted in together?

They have worked on 10 movies together! Their first movie together was Days of Being Wild (1990) while their highest rated movie together was 1:99 Shorts (2003). They have not worked together since Infernal Affairs Trilogy (Chronological Edition) (2006). They are most known for their drama films together.