How many movies have Dai Sato and Yuko Sanpei collaborated on?

They have worked on 4 movies together! Their first movie together was Psalms of Planets Eureka Seven: Good Night, Sleep Tight, Young Lovers (2009) and was their highest rated movie together. They have not worked together since Eureka: Eureka Seven Hi-Evolution (2021). They are most known for their action films together.