How many movies have Fujiko F. Fujio and Riwako Matsui collaborated on?

They have worked on 5 movies together! Their first movie together was Doraemon: Nobita's Great Adventure in the South Seas (1998) while their highest rated movie together was Doraemon: Nobita's Dinosaur (2006). They have not worked together since Doraemon the Movie: Nobita's Sky Utopia (2023). They are most known for their family films together.