How many movies have Mitsuaki Iwago and 高野 正樹 collaborated on?

They have worked on 2 movies together! Their first movie together was 劇場版　岩合光昭の世界ネコ歩き　コトラ家族と世界のいいコたち (2017) and was their highest rated movie together. They have not worked together since 劇場版　岩合光昭の世界ネコ歩き　あるがままに、水と大地のネコ家族 (2021).