How many movies have Kotono Watanabe and Yota Tsuruoka collaborated on?

They have worked on 1 movie together! Their first movie together was Puella Magi Madoka Magica the Movie Part II: Eternal (2012) and was their highest rated movie together. They have not worked together since Puella Magi Madoka Magica the Movie Part II: Eternal (2012).