How many movies have Lung Tin-Sang and Tony Leung Hung-Wah collaborated on?

They have worked on 6 movies together! Their first movie together was Mobfix Patrol (1981) while their highest rated movie together was Bomb Disposal Officer: Baby Bomb (1994). They have not worked together since Bomb Disposal Officer: Baby Bomb (1994). They are most known for their crime films together.