How many movies have Jirō Ishikawa and Kazumi Ishizuka collaborated on?

They have worked on 2 movies together! Their first movie together was Memoirs of a Lady Ninja 2 (2009) while their highest rated movie together was Gintama Yugi Pachinko Queen Nanase Amateur Pachinker Winning Method! (2011). They have not worked together since Gintama Yugi Pachinko Queen Nanase Amateur Pachinker Winning Method! (2011).