When Larry McMurtry's classic novel of the post-World War II era was originally published in 1961, it created a sensation in Texas literary circles. Never before had a writer portrayed the contemporary West in conflict with the Old West in such stark, realistic, unsentimental ways. "Horseman, Pass By," on which the film "Hud" is based, tells the story of Homer Bannon, an old-time cattleman who epitomizes the frontier values of honesty and decency,...