How many movies have Hiroshi Kamiya and Seiji Mizushima collaborated on?

They have worked on 5 movies together! Their first movie together was Mobile Suit Gundam 00 Special Edition I: Celestial Being (2009) while their highest rated movie together was Mobile Suit Gundam 00 Special Edition III: Return The World (2010). They have not worked together since Rakuen Tsuiho: Expelled from Paradise (2014). They are most known for their action films together.