How many movies have Atsuhiro Iwakami and Yutaka Araki collaborated on?

They have worked on 4 movies together! Their first movie together was The Anthem of the Heart (2015) while their highest rated movie together was Fate/stay night: Heaven's Feel III. Spring Song (2020). They have not worked together since Fate/stay night: Heaven's Feel III. Spring Song (2020). They are most known for their drama films together.