How many movies have Kunihiko Inaba and Yuki Funagakure collaborated on?

They have worked on 4 movies together! Their first movie together was Fullmetal Alchemist the Movie: The Sacred Star of Milos (2011) while their highest rated movie together was Road to Ninja: Naruto the Movie (2012). They have not worked together since Drifting Home (2022). They are most known for their fantasy films together.