Leigh Douglass Brackett (1915 - 1978) was an American writer, particularly of science fiction, and has been referred to as the Queen of Space Opera. She was also a screenwriter, known for her work on such films as The Big Sleep (1946), Rio Bravo (1959), The Long Goodbye (1973) and The Empire Strikes Back (1980). She was the first woman shortlisted for the Hugo Award.