How many movies have Atsushi Watanabe and Shintarō Miyamoto collaborated on?

They have worked on 16 movies together! Their first movie together was 旗本退屈男　どくろ屋敷 (1954) while their highest rated movie together was Bloody Spear at Mount Fuji (1955). They have not worked together since The Cave of the Vampire Bats (1961).