How many movies have Eri Ouzeki and Mitsuaki Hoshino acted in together?

They have worked on 1 movie together! Their first movie together was THE iDOLM@STER MOVIE: Beyond the Brilliant Future! (2014) and was their highest rated movie together. They have not worked together since THE iDOLM@STER MOVIE: Beyond the Brilliant Future! (2014).