How many movies have Sung Wan-kyung and Um Sang-hyun acted in together?

They have worked on 3 movies together! Their first movie together was Timing (2015) while their highest rated movie together was Miniforce: Raid of Hamburger Monsters (2020). They have not worked together since Miniforce: Raid of Hamburger Monsters (2020). They are most known for their animation films together.