How many movies have Angus Chan Siu-Hei and Yau Nai-Hoi collaborated on?

They have worked on 2 movies together! Their first movie together was Drug War (2012) and was their highest rated movie together. They have not worked together since Three (2016).

Role
Sun (Constable)
Crew
Producer
Crew
Screenplay
Role
Jinhai Anti-Drug Squad Member
Crew
Writer