How many movies have Sadao Yamanaka and Sōji Kiyokawa collaborated on?

They have worked on 10 movies together! Their first movie together was Jirokichi the Rat-Kid: The Journey (1933) while their highest rated movie together was Tange Sazen and the Pot Worth a Million Ryo (1935). They have not worked together since Ishimatsu from the Forest (1937).