How many movies have Matthew Lillard and Spike Brandt collaborated on?

They have worked on 7 movies together! Their first movie together was Scooby-Doo! Abracadabra-Doo (2010) while their highest rated movie together was Scooby-Doo! and KISS: Rock and Roll Mystery (2015). They have not worked together since Scooby-Doo! The Sword and the Scoob (2021). They are most known for their mystery films together.