Question: What is the date of birth of the director of film The Extremely Tragic Story Of Celal Tan And His Family?
Sentence (from "The Extremely Tragic Story of Celal Tan and His Family"): The Extremely Tragic Story of Celal Tan and His Family  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.
Relevant evidence: Yes