Written by Oscar? winner Dustin Lance Black, directed by Oscar? winner Clint Eastwood, and starring Oscar? nominated Leonardo DiCaprio, the official screenplay tie-in book to Warner Bros. Pictures film about the life of legendary FBI founder J. Edgar Hoover.Written by Oscar? winner Dustin Lance Black, directed by Oscar? winner Clint Eastwood, and starring Oscar? nominated Leonardo DiCaprio, the official screenplay tie-in book to Warner Bros. Pictures film about the life of legendary FBI founder J. Edgar Hoover.