How many movies have Kazuhiko Yabumoto and Maaya Sakamoto collaborated on?

They have worked on 3 movies together! Their first movie together was Fullmetal Alchemist the Movie: The Sacred Star of Milos (2011) and was their highest rated movie together. They have not worked together since Code Geass: Akito the Exiled 2: The Wyvern Divided (2013). They are most known for their animation films together.