How many movies have J.K. Rowling and Paul Spateri collaborated on?

They have worked on 4 movies together! Their first movie together was Harry Potter and the Chamber of Secrets (2002) while their highest rated movie together was Harry Potter and the Deathly Hallows: Part 1 (2010). They have not worked together since Harry Potter and the Deathly Hallows: Part 1 (2010). They are most known for their fantasy films together.