How many movies have Kazunori Ito and Mamoru Oshii collaborated on?

They have worked on 10 movies together! Their first movie together was The Red Spectacles (1987) while their highest rated movie together was The Next Generation Patlabor: Tokyo War: Director's Cut (2015). They have not worked together since The Next Generation Patlabor: Tokyo War: Director's Cut (2015). They are most known for their science fiction films together.