How many movies have Kanako Watanabe and Mitsuru Ishihara collaborated on?

They have worked on 2 movies together! Their first movie together was Fafner in the Azure: Dead Aggressor - 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 Space Battleship Yamato 2199: Odyssey of the Celestial Ark (2014).