How many movies have Tetsuya Takeuchi and Yu Yamashita collaborated on?

They have worked on 4 movies together! Their first movie together was Gunbuster vs Diebuster: Aim for the Top! The GATTAI!! Movie (2006) while their highest rated movie together was Penguin Highway (2018). They have not worked together since Pompo the Cinephile (2021). They are most known for their animation films together.