How many movies have Mieko Harada and Saori Watanabe acted in together?

They have worked on 1 movie together! Their first movie together was Tsuda Umeko: Osatsu ni Natta Ryugakusei (2022) and was their highest rated movie together. They have not worked together since Tsuda Umeko: Osatsu ni Natta Ryugakusei (2022).