How many movies have Hideki Ito and Tetsuya Kawakami collaborated on?

They have worked on 3 movies together! Their first movie together was RahXephon: Pluralitas Concentio (2003) while their highest rated movie together was Fullmetal Alchemist the Movie: Conqueror of Shamballa (2005). They have not worked together since The Piano Forest (2007). They are most known for their animation films together.