Tombstone was the first shot fired in a double-barreled blast of Wyatt Earp movies in 1993 and 1994. While Lawrence Kasdan and Kevin Costner’s Wyatt Earp was too long, plodding and ponderous, George Pan Cosmato’s entry in the O.K. Corral sweepstakes was violent and operatic, a noisy revenge tale told at a fever pitch. It was also the better movie, even if its fidelity to the facts of Earp’s life was less than letter perfect. Movie audiences have never been that picky about historical accuracy in their westerns. Young Guns did all right and it was hardly a scholarly work on the life of Billy the Kid.