How many movies have Kaori Matsushima and Sawako Miyamoto collaborated on?

They have worked on 2 movies together! Their first movie together was Doraemon the Movie: Nobita's Sky Utopia (2023) while their highest rated movie together was Totto-chan: The Little Girl at the Window (2023). They have not worked together since Totto-chan: The Little Girl at the Window (2023).