Formulate an answer to this elaborate question: Larry Jeff McMurtry, is an American novelist, essayist, bookseller, and screenwriter whose work is predominantly set in either the old West or in contemporary Texas, McMurtry and cowriter Diana Ossana adapted the screenplay for which 2005 American neo-western romantic drama film directed by Ang Lee and produced by Diana Ossana and James Schamus?
The answer to this question is:
Brokeback Mountain