How many movies have Houchang Allahyari and Mohsan Nasiri collaborated on?

They have worked on 5 movies together! Their first movie together was I Love Vienna (1991) while their highest rated movie together was Black Flamingos - Sie lieben euch zu Tode (1998). They have not worked together since Ene mene muh – und tot bist du (2001). They are most known for their comedy films together.