How many movies have Masaaki Kudo and Sumi Shimamoto collaborated on?

They have worked on 2 movies together! Their first movie together was Go! Anpanman: When the Flower of Courage opens (1999) while their highest rated movie together was Go! Anpanman: Tears of the Mermaid Princess (2000). They have not worked together since Go! Anpanman: Tears of the Mermaid Princess (2000).