How many movies have Chisato Kawaguchi and Michiko Notsu collaborated on?

They have worked on 3 movies together! Their first movie together was One Piece: Curse of the Sacred Sword (2004) while their highest rated movie together was Clannad: The Motion Picture (2007). They have not worked together since Clannad: The Motion Picture (2007). They are most known for their animation films together.