How many movies have Hiroyuki Shimizu and Kouichirou Natsume collaborated on?

They have worked on 4 movies together! Their first movie together was Magical Girl Lyrical Nanoha: The Movie 1st (2010) while their highest rated movie together was The Anthem of the Heart (2015). They have not worked together since The Anthem of the Heart (2015). They are most known for their drama films together.