Context : The Extremely Tragic Story of Celal Tan and His Family (Turkish: Celal Tan ve Ailesinin Aşırı Acıklı Hikayesi) is a 2011 Turkish comedy-drama film, written and directed by Onur Ünlü, starring Selçuk Yöntem as a widowed constitutional law professor, whose life takes a turn for the worse when he remarries to a university student, whose life he has saved. 
Answer : Onur Ünlü
Who directed the film The Extremely Tragic Story of Celal Tan and His Family?