How many movies have Ai Watanabe and Shizuka Itoh collaborated on?

They have worked on 3 movies together! Their first movie together was Psycho-Pass: Sinners of the System - Case.1 Crime and Punishment (2019) while their highest rated movie together was BEM: BECOME HUMAN (2020). They have not worked together since Words Bubble Up Like Soda Pop (2021). They are most known for their animation films together.