How many movies have Ken Spears and Matthew Lillard collaborated on?

They have worked on 10 movies together! Their first movie together was Scooby-Doo (2002) while their highest rated movie together was Scooby-Doo! Legend of the Phantosaur (2011). They have not worked together since Scooby-Doo! and Krypto, Too! (2023). They are most known for their comedy films together.