How many movies have Kei Yamamura and Mamoru Oshii collaborated on?

They have worked on 9 movies together! Their first movie together was THE NEXT GENERATION パトレイバー 第1章 (2014) while their highest rated movie together was I Can't Stop Biting You (2022). They have not worked together since I Can't Stop Biting You (2022). They are most known for their drama films together.