How many movies have Atsuko Ishida and Hiroyuki Okuno collaborated on?

They have worked on 3 movies together! Their first movie together was Roujin Z (1991) while their highest rated movie together was Ranma ½: The Movie 2 — The Battle of Togenkyo: Rescue the Brides! (1992). They have not worked together since Fatal Fury: The Motion Picture (1994). They are most known for their animation films together.