How many movies have Megumi Hayashibara and Sayuri Sakimoto collaborated on?

They have worked on 2 movies together! Their first movie together was Pokémon the Movie: Volcanion and the Mechanical Marvel (2016) while their highest rated movie together was Pokémon the Movie: The Power of Us (2018). They have not worked together since Pokémon the Movie: The Power of Us (2018).