How many movies have Cris Mertens and Mike Mangan collaborated on?

They have worked on 3 movies together! Their first movie together was Lego DC Batman: Family Matters (2019) while their highest rated movie together was Happy Halloween, Scooby-Doo! (2020). They have not worked together since Happy Halloween, Scooby-Doo! (2020). They are most known for their comedy films together.