How many movies have Nobuyuki Iinuma and Satoru Karasawa collaborated on?

They have worked on 4 movies together! Their first movie together was 20th Century Boys: Beginning of the End (2008) while their highest rated movie together was Sanada 10 Braves (2016). They have not worked together since Sanada 10 Braves (2016). They are most known for their science fiction films together.