How many movies have Ryota Furukawa and Yoshikazu Iwanami collaborated on?

They have worked on 6 movies together! Their first movie together was The Garden of Sinners: Paradox Spiral (2008) and was their highest rated movie together. They have not worked together since Psycho-Pass: Sinners of the System - Case.3 On the Other Side of Love and Hate (2019). They are most known for their animation films together.