How many movies have Ku Bong-seo and Lee Yea-chun acted in together?

They have worked on 12 movies together! Their first movie together was Seong Chun-hyang (1961) while their highest rated movie together was Prince Yeonsan (1961). They have not worked together since The Korean Instrument with 12 Strings (1964). They are most known for their drama films together.

Role
Mr. Yoon (Teacher)
Role
Kim In-dal (Chang-soo's friend)