How many movies have Carmen Yeung Ka-Man and Gobby Wong Ga-Ying acted in together?

They have worked on 4 movies together! Their first movie together was Raped by an Angel 5: Advertising Temptations (2003) while their highest rated movie together was Love is a Many Stupid Thing (2004). They have not worked together since Love is a Many Stupid Thing (2004). They are most known for their thriller films together.