How many movies have Ko Lo-Chuen and Yip Ping acted in together?

They have worked on 8 movies together! Their first movie together was Monk in Love (1950) while their highest rated movie together was An Orphan's Tragedy (1955). They have not worked together since The Night the Spirit Returns (1962).

Role
Yan Wong-chuen (loaner)
Role
Chan's Third Concubine