How many movies have Hironori Aoyagi and Kazuhiro Wakabayashi collaborated on?

They have worked on 1 movie 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 Psalms of Planets Eureka Seven: Good Night, Sleep Tight, Young Lovers (2009).