How many movies have Toshiatsu Kôzuma and Yoshikazu Katō collaborated on?

They have worked on 16 movies together! Their first movie together was Ojôsan wa shirumamire (1995) while their highest rated movie together was Gibo no onanii: Hatsujô roshutsu (1997). They have not worked together since Innyo Ranbu: Battle Do-waisetsu (2001).