The talk about how much better Errol Flynn was as Robin Hood than Kevin Costner suggests a diversion. Think of how actors of past years might do in new films. Little Mickey Rooney, say, in Home Alone. Fred MacMurray and Stan Laurel in What About Bob? Paul Robeson and Ava Gardner in Jungle Fever. Elizabeth Taylor and Montgomery Clift in Dying Young. Judy Holliday and Clark Gable in Pretty Woman. John Wayne in Kindergarten Cop. Barbara Stanwyck and Paul Muni in The Silence of the Lambs. And, of course, Mamie Van Doren and Jayne Mansfield in Thelma & Louise.