How many movies have Joe Hisaishi and Tooru Hara collaborated on?

They have worked on 3 movies together! Their first movie together was Nausicaä of the Valley of the Wind (1984) while their highest rated movie together was My Neighbor Totoro (1988). They have not worked together since My Neighbor Totoro (1988). They are most known for their animation films together.

My Neighbor Totoro (1988)

Crew
Original Music Composer
Crew
Producer

Castle in the Sky (1986)

Crew
Original Music Composer
Crew
Production Manager

Nausicaä of the Valley of the Wind (1984)

Crew
Original Music Composer
Crew
Executive Producer