How many movies have Ikue Otani and Masakatsu Iijima collaborated on?

They have worked on 7 movies together! Their first movie together was Pokémon: Lucario and the Mystery of Mew (2005) while their highest rated movie together was Pokémon: Arceus and the Jewel of Life (2009). They have not worked together since Pokémon the Movie: I Choose You! (2017). They are most known for their adventure films together.