How many movies have Kana Kobayashi and Kaoru Hayano acted in together?

They have worked on 4 movies together! Their first movie together was Himawarigumi 1st Stage - Boku no Taiyou (2008) and was their highest rated movie together. They have not worked together since It's going to be a Kami-Concert (2009). They are most known for their music films together.