How many movies have Katsuyuki Yamazaki and Kunihiko Yuyama collaborated on?

They have worked on 2 movies together! Their first movie together was Pokémon the Movie: Diancie and the Cocoon of Destruction (2014) while their highest rated movie together was Pokémon the Movie: Hoopa and the Clash of Ages (2015). They have not worked together since Pokémon the Movie: Hoopa and the Clash of Ages (2015).