How many movies have Ikue Otani and Yōichi Kotabe collaborated on?

They have worked on 8 movies together! Their first movie together was Pokémon: Destiny Deoxys (2004) while their highest rated movie together was Pokémon: Arceus and the Jewel of Life (2009). They have not worked together since Pokémon the Movie: Hoopa and the Clash of Ages (2015). They are most known for their animation films together.