Frank Pierson, The Oscar-winning screenwriter of Dog Day Afternoon and Cool Hand Luke has died aged 87.
His family have said his death in LA was from natural causes after a short illness.
Frank won a 'Best Original Screenplay' Oscar for writing 1975's Dog Day Afternoon which starred Al Pacino.
He was also nominated for his screenplays Cool Hand Luke which had Paul Newman in the title role and Cat Ballou, in which Jane Fonda starred. Frank also wrote and directed 1976's A Star is Born.
Most recently he worked as a writer and consulting producer on TV hit Mad Men and The Good Wife.
New York-born Frank served as president of the Academy of Motion Picture Arts and Sciences from 2001 to 2005 and also served as governor of its writers branch for 17 years.
He leaves behind his wife, two children and five grandchildren.
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