How many movies have Hayao Miyazaki and Hisao Ohkawa collaborated on?

They have worked on 3 movies together! Their first movie together was Nadia: The Secret of Blue Water - Nautilus Story II (1991) and was their highest rated movie together. They have not worked together since Nadia: The Secret of Blue Water - Nautilus Story III (1991). They are most known for their action films together.