How many movies have Chika Kojima and Kanako Watanabe collaborated on?

They have worked on 3 movies together! Their first movie together was Fafner: Heaven and Earth (2010) while their highest rated movie together was Space Battleship Yamato 2199: Odyssey of the Celestial Ark (2014). They have not worked together since Eiga Drive Head: Tomika Hyper Rescue – Kidō Kyūkyū Keisatsu (2018). They are most known for their science fiction films together.