How many movies have Rei Sakuma and Takashi Yanase collaborated on?

They have worked on 10 movies together! Their first movie together was Go! Anpanman: Baikinman's Counterattack (1990) and was their highest rated movie together. They have not worked together since Let's Go! Anpanman: Baikinman and Lulun (2024). They are most known for their animation films together.