How many movies have Koichi Yamadera and Makoto Takahoko collaborated on?

They have worked on 3 movies together! Their first movie together was Pokémon the Movie: Kyurem vs. the Sword of Justice (2012) while their highest rated movie together was Stitch and the Planet of Sand (2014). They have not worked together since Stitch and the Planet of Sand (2014). They are most known for their animation films together.