How many movies have Hiroshi Chō and Takeharu Sakaguchi collaborated on?

They have worked on 7 movies together! Their first movie together was Underworld Beauty (1958) while their highest rated movie together was Detective Bureau 2-3: Go to Hell, Bastards! (1963). They have not worked together since Case of the Disjointed Murder (1977). They are most known for their crime films together.