How many movies have Hajime Watanabe and Kazuya Ichijo collaborated on?

They have worked on 2 movies together! Their first movie together was Prince Mackaroo the Movie: The Promised Summer - Ojaru and Semira (2000) while their highest rated movie together was Animation Runner Kuromi 2 (2004). They have not worked together since Animation Runner Kuromi 2 (2004).