How many movies have Elsie Yeh and Elvis Tsui Kam-Kong acted in together?

They have worked on 4 movies together! Their first movie together was Butterfly and Sword (1993) while their highest rated movie together was The Great Conqueror's Concubine (1994). They have not worked together since Shaolin Popey III: China Dragon (1995). They are most known for their action films together.