How many movies have Kim Seo-yeong and Um Sang-hyun acted in together?

They have worked on 5 movies together! Their first movie together was Pororo: Cyberspace Adventure (2015) while their highest rated movie together was Pororo and Friends: Virus Busters (2022). They have not worked together since Pororo and Friends: Virus Busters (2022). They are most known for their animation films together.