How many movies have Hideo Ishikawa and Keiko Sakai acted in together?

They have worked on 2 movies together! Their first movie together was Kamen Rider × Super Sentai × Space Sheriff: Super Hero Wars Otsu: Heroo! Answers (2013) and was their highest rated movie together. They have not worked together since Kamen Rider × Super Sentai × Space Sheriff Super Hero Taisen Z Released Memorial: Kamen Rider Wizard Special Event Z (2013).