The author of Brokeback Mountain, which was turned into an Oscar-winning film starring the late Heath Ledger, has complained that the tale is now a “source of constant irritation” in her life. Annie Proulx, 73, has been pestered with “pornish” letters sent by fans of the book about two cowboys and their illicit homosexual passions in America’s conservative Midwest. When the story was published in 1999, it was praised for its delicate handling of homophobia. However, some critics felt Miss Proulx could have gone further in describing the love shared between the two main characters. She told The Wall Street...