How many movies have Peter Hartshorne and William Hope collaborated on?

They have worked on 4 movies together! Their first movie together was Thomas & Friends: Day of the Diesels - The Movie (2011) while their highest rated movie together was Thomas and Friends: The Adventure Begins (2015). They have not worked together since Thomas & Friends: Sodor's Legend of the Lost Treasure: The Movie (2015). They are most known for their family films together.