How many movies have Koichi Sakamoto and Sanae Hitomi collaborated on?

They have worked on 7 movies together! Their first movie together was Kamen Rider W Returns: Kamen Rider Eternal (2011) while their highest rated movie together was Girls in Trouble: Space Squad Episode Zero (2017). They have not worked together since Uchuu Sentai Kyuranger: Episode of Stinger (2017). They are most known for their action films together.