How many movies have Ken Ootsuka and Nobuaki Nagano collaborated on?

They have worked on 5 movies together! Their first movie together was Digimon Adventure 02: Hurricane Touchdown! The Golden Digimentals (2000) while their highest rated movie together was Evangelion: 1.0 You Are (Not) Alone (2007). They have not worked together since Eureka: Eureka Seven Hi-Evolution (2021). They are most known for their science fiction films together.