How many movies have Um Sang-hyun and 최종일 collaborated on?

They have worked on 2 movies together! Their first movie together was Turning Mecards W: Resurrection of the Black Mirror (2017) while their highest rated movie together was Hello Carbot the Movie: The Cretaceous Period (2018). They have not worked together since Hello Carbot the Movie: The Cretaceous Period (2018).