How many movies have Kohei Yamamoto and Koichi Sakamoto collaborated on?

They have worked on 3 movies together! Their first movie together was Kamen Rider W Returns: Kamen Rider Accel (2011) while their highest rated movie together was We're a Bounty Hunter Team! (2014). They have not worked together since We're a Bounty Hunter Team! (2014). They are most known for their adventure films together.