How many movies have Aya Ueto and Yôko Ohshima acted in together?

They have worked on 1 movie together! Their first movie together was Ai wa mieru: Zenmô fûfu ni yadotta chiisana inochi (2010) and was their highest rated movie together. They have not worked together since Ai wa mieru: Zenmô fûfu ni yadotta chiisana inochi (2010).