How many movies have Jun Watanabe and Kazuya Okada collaborated on?

They have worked on 1 movie together! Their first movie together was Kamen Rider OOO Wonderful: The Shogun and the 21 Core Medals (2011) and was their highest rated movie together. They have not worked together since Kamen Rider OOO Wonderful: The Shogun and the 21 Core Medals (2011).