How many movies have Hideki Okamura and Toshihiko Masuda collaborated on?

They have worked on 2 movies together! Their first movie together was Bleach the Movie: The DiamondDust Rebellion (2007) while their highest rated movie together was Lupin the Third vs. Detective Conan: The Movie (2013). They have not worked together since Lupin the Third vs. Detective Conan: The Movie (2013).