How many movies have Hiroaki Iwanaga and Nobuhiro Mouri collaborated on?

They have worked on 4 movies together! Their first movie together was Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Feudal Movie Wars (2013) while their highest rated movie together was Kamen Rider Zi-O NEXT TIME: Geiz, Majesty (2020). They have not worked together since Kamen Rider OOO 10th: The Core Medals of Resurrection (2022). They are most known for their science fiction films together.