How many movies have Koji Tanaka and Masahiro Murakami collaborated on?

They have worked on 6 movies together! Their first movie together was Sakura Wars: The Movie (2001) while their highest rated movie together was Ghost in the Shell: Stand Alone Complex - Solid State Society (2006). They have not worked together since Ghost in the Shell: The New Movie (2015). They are most known for their animation films together.