How many movies have Hiroyuki Chiba and Ichirou Ookouchi collaborated on?

They have worked on 5 movies together! Their first movie together was Code Geass: Lelouch of the Rebellion – Initiation (2017) while their highest rated movie together was Code Geass: Lelouch of the Re;Surrection (2019). They are most known for their science fiction films together.