How many movies have Coşkun Göğen and Erdoğan Tünaş collaborated on?

They have worked on 13 movies together! Their first movie together was Mağlup Edilemeyenler (1976) while their highest rated movie together was Gerzek Şaban (1980). They have not worked together since Ayrılamam (1986). They are most known for their drama films together.