How many movies have Eriko Matsui and Rei Matsuzaki acted in together?

They have worked on 6 movies together! Their first movie together was THE IDOLM@STER CINDERELLA GIRLS 2ndLIVE PARTY M@GIC!! (2015) and was their highest rated movie together. They have not worked together since THE IDOLM@STER CINDERELLA GIRLS 10th ANNIVERSARY M@GICAL WONDERLAND!!! Celebration Land day1 (2022).