How many movies have Akira Takata and Koichi Yamadera collaborated on?

They have worked on 4 movies together! Their first movie together was Sakura Wars: The Movie (2001) while their highest rated movie together was Evangelion: 2.0 You Can (Not) Advance (2009). They have not worked together since A Letter to Momo (2012). They are most known for their animation films together.