How many movies have Akira Toriyama and Naoki Tatsuta collaborated on?

They have worked on 13 movies together! Their first movie together was Dragon Ball: Curse of the Blood Rubies (1986) while their highest rated movie together was Dragon Ball Z: The History of Trunks (1993). They have not worked together since Dragon Ball: The Path to Power (1996). They are most known for their animation films together.