How many movies have Rumiko Takahashi and Saeko Shimazu collaborated on?

They have worked on 8 movies together! Their first movie together was Urusei Yatsura: Only You (1983) while their highest rated movie together was Urusei Yatsura: Beautiful Dreamer (1984). They have not worked together since Ranma ½: The Movie — The Battle of Nekonron: The Fight to Break the Rules! (1991). They are most known for their comedy films together.