How many movies have Nagamasa Yamada and Takashi Yamaguchi acted in together?

They have worked on 4 movies together! Their first movie together was The Fencing Collegian (1956) while their highest rated movie together was Super Giant: The Mysterious Spacemen's Demonic Castle (1957). They have not worked together since Ōwarai Jiro chō ikka: Sanshita nitei kenjū (1962).