How many movies have Akio Otsuka and Koji Ishii acted in together?

They have worked on 3 movies together! Their first movie together was Sin: The Movie (2000) while their highest rated movie together was Gokaiger Goseiger Super Sentai 199 Hero Great Battle (2011). They have not worked together since The Empire of Corpses (2015). They are most known for their science fiction films together.