How many movies have Atsuko Nakajima and Yuki Nakajima collaborated on?

They have worked on 4 movies together! Their first movie together was Bleach the Movie: Memories of Nobody (2006) while their highest rated movie together was Blood-C: The Last Dark (2012). They have not worked together since Psycho-Pass: The Movie (2015). They are most known for their animation films together.