How many movies have Souichirou Sako and Yasuomi Kishi collaborated on?

They have worked on 3 movies together! Their first movie together was Fullmetal Alchemist the Movie: The Sacred Star of Milos (2011) while their highest rated movie together was Josee, the Tiger and the Fish (2020). They have not worked together since Josee, the Tiger and the Fish (2020). They are most known for their animation films together.