How many movies have Itarō Yamagami and Keinosuke Sawada collaborated on?

They have worked on 1 movie together! Their first movie together was Rônin-gai - Dai-san-wa: Tsukareta hitobito (1929) and was their highest rated movie together. They have not worked together since Rônin-gai - Dai-san-wa: Tsukareta hitobito (1929).