How many movies have Kim Yong-sun and Ryoo Seung-wan collaborated on?

They have worked on 1 movie together! Their first movie together was The City of Violence (2006) and was their highest rated movie together. They have not worked together since The City of Violence (2006).

Role
Construction Site Woman
Crew
Director
Crew
Writer
Role
Seok-hwan
Crew
Executive Producer