How many movies have Bob Young and William Hanna collaborated on?

They have worked on 1 movie together! Their first movie together was Hanna-Barbera's All-Star Comedy Ice Revue (1978) and was their highest rated movie together. They have not worked together since Hanna-Barbera's All-Star Comedy Ice Revue (1978).

Role
Self - Course & Young of the Ice Capades
Crew
Executive Producer