How many movies have John MacCarthy and Lionel Barton collaborated on?

They have worked on 6 movies together! Their first movie together was Scooby-Doo 2: Monsters Unleashed (2004) while their highest rated movie together was Aurora Teagarden Mysteries: Til Death Do Us Part (2021). They have not worked together since Aurora Teagarden Mysteries: Haunted By Murder (2022). They are most known for their mystery films together.