How many movies have David Heyman and J.K. Rowling collaborated on?

They have worked on 11 movies together! Their first movie together was Harry Potter and the Philosopher's Stone (2001) while their highest rated movie together was Harry Potter and the Deathly Hallows: Part 2 (2011). They have not worked together since Fantastic Beasts: The Secrets of Dumbledore (2022). They are most known for their adventure films together.