How many movies have Ayumi Ishida and Rio Miyazaki acted in together?

They have worked on 18 movies together! Their first movie together was Hello! Project 2014 COUNTDOWN PARTY 2014-2015 ~GOODBYE & HELLO!~ (2014) while their highest rated movie together was Hello! Project 2017 Summer ~HELLO! MEETING~ (2017). They have not worked together since Hello! Project 2020 Winter ~HELLO! PROJECT IS [     ]~ (2020).