How many movies have Doris Lung Chun-Erh and Lung Fei acted in together?

They have worked on 8 movies together! Their first movie together was The Invincible Sword (1971) while their highest rated movie together was Master of the Flying Guillotine (1976). They have not worked together since Eunuch of the Western Palace (1979). They are most known for their action films together.