How many movies have Haruhiko Ishikawa and Kazuhisa Takenouchi collaborated on?

They have worked on 1 movie together! Their first movie together was Interstella 5555: The 5tory of the 5ecret 5tar 5ystem (2003) and was their highest rated movie together. They have not worked together since Interstella 5555: The 5tory of the 5ecret 5tar 5ystem (2003).