How many movies have Eitoku and Jiro Okamoto collaborated on?

They have worked on 10 movies together! Their first movie together was Kamen Rider Kabuto: God Speed Love (2006) while their highest rated movie together was Kamen Rider Den-O & Kiva: Climax Deka (2008). They have not worked together since Kamen Rider x Kamen Rider Fourze & OOO Movie Wars Mega Max (2011). They are most known for their science fiction films together.