How many movies have Hiroaki Kitano and Munetaka Aoki collaborated on?

They have worked on 2 movies together! Their first movie together was Hara-Kiri: Death of a Samurai (2011) while their highest rated movie together was Rurouni Kenshin Part I: Origins (2012). They have not worked together since Rurouni Kenshin Part I: Origins (2012).