How many movies have Atsuhiro Iwakami and Hiroyuki Shimizu 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 Sword Art Online: The Movie – Ordinal Scale (2017). They have not worked together since Love Me, Love Me Not (2020). They are most known for their animation films together.