How many movies have Hiromi Nakamura and Koichi Yamadera acted in together?

They have worked on 6 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 Go! Anpanman: Rescue! Kokorin and the Star of Miracles (2011). They are most known for their animation films together.