How many movies have Hiroyuki Horiuchi and Tetsuya Kumagai collaborated on?

They have worked on 5 movies together! Their first movie together was Jin-Roh: The Wolf Brigade (1999) while their highest rated movie together was Millennium Actress (2002). They have not worked together since Naruto the Movie: Legend of the Stone of Gelel (2005). They are most known for their animation films together.