How many movies have Ümit Efekan and İlyas Salman collaborated on?

They have worked on 4 movies together! Their first movie together was Aptal Kahraman (1983) while their highest rated movie together was Şaşkın Ördek (1983). They have not worked together since Ya Ya Ya Şa Şa Şa (1985). They are most known for their comedy films together.