How many movies have Fujiko F. Fujio and Yoko Kuri collaborated on?

They have worked on 2 movies together! Their first movie together was 21 Emon Welcome to the Space (1981) while their highest rated movie together was Doraemon: Nobita and the Haunts of Evil (1982). They have not worked together since Doraemon: Nobita and the Haunts of Evil (1982).