How many movies have Atsushi Okui and Shinichi Sakuma collaborated on?

They have worked on 5 movies together! Their first movie together was Dirty Pair: Project Eden (1986) while their highest rated movie together was Dirty Pair: Flight 005 Conspiracy (1990). They have not worked together since Mobile Suit Gundam F91 (1991). They are most known for their science fiction films together.