How many movies have Akiyuki Simbo and Emiri Kato collaborated on?

They have worked on 4 movies together! Their first movie together was Puella Magi Madoka Magica the Movie Part I: Beginnings (2012) while their highest rated movie together was Puella Magi Madoka Magica the Movie Part III: Rebellion (2013). They have not worked together since Zoku Owarimonogatari (2018). They are most known for their fantasy films together.