How many movies have Inuko Inuyama and Mayumi Izuka acted in together?

They have worked on 9 movies together! Their first movie together was Pokémon: The First Movie (1998) while their highest rated movie together was Pocket Monsters the Movie: Mewtwo Strikes Back! - The Kanzenban Edition (1999). They have not worked together since Pokémon the Movie: Mewtwo Strikes Back - Evolution (2019). They are most known for their animation films together.