How many movies have Ikue Otani and Yoshiaki Honma collaborated on?

They have worked on 1 movie together! Their first movie together was HeartCatch PreCure! the Movie: Fashion Show in the City of Flowers!? (2010) and was their highest rated movie together. They have not worked together since HeartCatch PreCure! the Movie: Fashion Show in the City of Flowers!? (2010).