How many movies have Kim Hyung-ja and Song Chang-yong collaborated on?

They have worked on 2 movies together! Their first movie together was Underground Rendezvous (2007) and was their highest rated movie together. They have not worked together since Oh! My God 2 (2009).

Role
Jung-hwan's mother
Crew
Producer
Role
Young-Tan's mother
Crew
Executive Producer