How many movies have Junko Iwao and Yoshinao Doi collaborated on?

They have worked on 2 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 II: Eternal (2012). They have not worked together since Puella Magi Madoka Magica the Movie Part II: Eternal (2012).