How many movies have Akihiro Tamagawa and Ikue Otani collaborated on?

They have worked on 4 movies together! Their first movie together was Pokémon: Mewtwo Returns (2001) while their highest rated movie together was Pokémon: Lucario and the Mystery of Mew (2005). They have not worked together since Pokémon Ranger and the Temple of the Sea (2006). They are most known for their fantasy films together.