"True Grit",one of John Wayne's best movies is on American Movie Classics channel tonight at 8 PM EDT. Wayne enters his lion-in-winter phase, subverting his screen image as western hero to provide a darker, richer portrayal of the real true grit called for on the frontier. Overweight, drunken and one-eyed, Wayne, as marshal Rooster Cogburn, would seem an unpromising candidate to track a murderous cowboy into Indian Territory. But he's Darby's choice to find the man who killed her father. They're joined by bounty hunter Campbell (in his first screen role) as they follow Corey and Duvall's gang to their...