How many movies have Shintarō Yamada and Tomoya Ohata collaborated on?

They have worked on 1 movie together! Their first movie together was Ryujin Mabuyer The Movie: Nanatsu no Mabui (2012) and was their highest rated movie together. They have not worked together since Ryujin Mabuyer The Movie: Nanatsu no Mabui (2012).