How many movies have Hiroaki Kitano and Tomoko Machida collaborated on?

They have worked on 3 movies together! Their first movie together was 13 Assassins (2010) while their highest rated movie together was Hara-Kiri: Death of a Samurai (2011). They have not worked together since Hara-Kiri: Death of a Samurai (2011). They are most known for their drama films together.