How many movies have Akira Toriyama and Tadayoshi Yamamuro collaborated on?

They have worked on 13 movies together! Their first movie together was Dragon Ball Z: The World's Strongest (1990) while their highest rated movie together was Dragon Ball: The Path to Power (1996). They have not worked together since Dragon Ball Z: Resurrection ‘F’ - Future Trunks Special Edition (2016). They are most known for their animation films together.