How many movies have Lowell Lo Koon-Ting and Raymond Lam Fai-Tai collaborated on?

They have worked on 6 movies together! Their first movie together was Couples, Couples, Couples (1988) while their highest rated movie together was Blade of Fury (1993). They have not worked together since Once Upon a Time in China and America (1997). They are most known for their action films together.