How many movies have Houko Kuwashima and Kumiko Watanabe acted in together?

They have worked on 6 movies together! Their first movie together was Inuyasha the Movie: Affections Touching Across Time (2001) while their highest rated movie together was Inuyasha the Movie 2: The Castle Beyond the Looking Glass (2002). They have not worked together since One Piece Film Red (2022). They are most known for their fantasy films together.