LOS ANGELES (Reuters) - "Brokeback Mountain," once ridiculed as "the gay cowboy movie" but now the front-runner in Hollywood's Oscar race, gets its first major awards show test on Monday night -- in prime time with millions watching. The gay romance goes into the 63rd Annual Golden Globe Awards on Monday with the most nominations -- seven -- of any film and with a favorite status that many in the industry think could be unshakable in the buildup to the March 5 Oscars. The Golden Globe Awards are an only-in-Hollywood tradition. They are given by the Hollywood Foreign Press Association,...