How many movies have Kazuki Ito and Koji Iwaki collaborated on?

They have worked on 3 movies together! Their first movie together was Mobile Suit Gundam 00 The Movie: -A Wakening of the Trailblazer- (2010) while their highest rated movie together was Doraemon the Movie: Nobita's Sky Utopia (2023). They have not worked together since Doraemon the Movie: Nobita's Sky Utopia (2023). They are most known for their science fiction films together.