How many movies have Choi Hak-rak and Jang Hyeon-su collaborated on?

They have worked on 3 movies together! Their first movie together was Rules of the Game (1994) while their highest rated movie together was Raybang (2001). They have not worked together since Digital Short Film Omnibus Project Twentidentity, Vol. 1 (2003). They are most known for their drama films together.