How many movies have Cash Chin Man-Kei and Wong Jing collaborated on?

They have worked on 7 movies together! Their first movie together was Perfect Exchange (1993) while their highest rated movie together was The Forbidden Legend: Sex & Chopsticks 2 (2009). They have not worked together since The Forbidden Legend: Sex & Chopsticks 2 (2009). They are most known for their comedy films together.