How many movies have Joseph Barbera and Kathi Castillo collaborated on?

They have worked on 5 movies together! Their first movie together was Jetsons: The Movie (1990) while their highest rated movie together was Chill Out, Scooby-Doo! (2007). They have not worked together since Chill Out, Scooby-Doo! (2007). They are most known for their animation films together.