How many movies have Herbert Hirschman and Lalo Schifrin collaborated on?

They have worked on 3 movies together! Their first movie together was The President's Mistress (1978) while their highest rated movie together was The Forgotten City of the Planet of the Apes (1980). They have not worked together since The Forgotten City of the Planet of the Apes (1980). They are most known for their tv movie films together.