How many movies have Chung Kwang-suk and Shin Il-ryong collaborated on?

They have worked on 3 movies together! Their first movie together was An Unmarried Teacher (1973) while their highest rated movie together was Special Investigation Unit: The Life of Miss Kim Su-im (1974). They have not worked together since The Flower at the Equator (1983). They are most known for their drama films together.