How many movies have Akiyuki Nosaka and Masahito Kawanago collaborated on?

They have worked on 1 movie together! Their first movie together was The Tale of the Ginormous Whale That Fell in Love with a Little Submarine (2004) and was their highest rated movie together. They have not worked together since The Tale of the Ginormous Whale That Fell in Love with a Little Submarine (2004).