How many movies have Hiroaki Hirata and Misa Watanabe acted in together?

They have worked on 4 movies together! Their first movie together was Gensomaden Saiyuki: A Sin of Hope (2002) while their highest rated movie together was One Piece: Baron Omatsuri and the Secret Island (2005). They have not worked together since Kaizoku Sentai Gokaiger vs. Space Sheriff Gavan: The Movie (2012). They are most known for their animation films together.