VENICE (Reuters) - Ang Lee's "Brokeback Mountain," a tale of homosexual love in the wilds of Wyoming, won Venice's Golden Lion on Saturday, beating film festival favorite George Clooney in the race to take the top prize. The latest film by the director of "Crouching Tiger, Hidden Dragon" is adapted from a short story by Annie Proulx and stars Heath Ledger and Jake Gyllenhaal as love-struck cowboys whose forbidden affair begins in 1963 and ends 20 years later. Lee describes "Brokeback Mountain" as a story of love against adversity. Independent and low-budget, like several U.S. entries at the festival, it...