How many movies have David Mitton and George Carlin collaborated on?

They have worked on 13 movies together! Their first movie together was Thomas & Friends - Thomas, Percy & the Dragon and Other Stories (1993) while their highest rated movie together was Thomas & Friends: Thomas Comes To Breakfast & Other Thomas Adventures (1998). They have not worked together since Thomas & Friends: The Greatest Stories (2010). They are most known for their family films together.