How many movies have Kosuke Yamashita and Kyoichi Okamura collaborated on?

They have worked on 2 movies together! Their first movie together was Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles (2021) while their highest rated movie together was Kaizoku Sentai: Ten Gokaiger (2021). They have not worked together since Kaizoku Sentai: Ten Gokaiger (2021).