How many movies have Bin Furuya and 上原正三 collaborated on?

They have worked on 1 movie together! Their first movie together was ウルトラセブン：ヴァンパイアの恐ろし (1968) and was their highest rated movie together. They have not worked together since ウルトラセブン：ヴァンパイアの恐ろし (1968).