How many movies have Kazunobu Hoshi and Shirō Kigi collaborated on?

They have worked on 4 movies together! Their first movie together was Naruto the Movie: Guardians of the Crescent Moon Kingdom (2006) while their highest rated movie together was Naruto Shippuden the Movie (2007). They have not worked together since Naruto Shippuden the Movie: Bonds (2008). They are most known for their animation films together.