How many movies have Emi Kouno and Takashi Hashimoto collaborated on?

They have worked on 2 movies together! Their first movie together was One Piece Film: Z (2012) while their highest rated movie together was Puella Magi Madoka Magica the Movie Part III: Rebellion (2013). They have not worked together since Puella Magi Madoka Magica the Movie Part III: Rebellion (2013).