How many movies have Ryoko Amisaki and Shingo Nakamura collaborated on?

They have worked on 4 movies together! Their first movie together was Code Geass: Akito the Exiled 1: The Wyvern Arrives (2012) while their highest rated movie together was Psycho-Pass: Sinners of the System - Case.1 Crime and Punishment (2019). They have not worked together since Psycho-Pass: Sinners of the System - Case.1 Crime and Punishment (2019). They are most known for their animation films together.