How many movies have Shu Watanabe and Sota Fukushi acted in together?

They have worked on 6 movies together! Their first movie together was Kamen Rider OOO Wonderful: The Shogun and the 21 Core Medals (2011) while their highest rated movie together was Kamen Rider x Kamen Rider Fourze & OOO Movie Wars Mega Max (2011). They have not worked together since Kamen Rider: Heisei Generations Forever (2018). They are most known for their science fiction films together.