How many movies have Katsumi Ikeda and Kayoko Nabeta collaborated on?

They have worked on 3 movies together! Their first movie together was Bronze: Zetsuai Since 1989 (1996) while their highest rated movie together was Professor Layton and the Eternal Diva (2009). They have not worked together since Professor Layton and the Eternal Diva (2009). They are most known for their animation films together.