A debonair 68-year-old actor — whose half-century career included a memorable role in all three "Godfather" movies — was last night dragged to his death in a horrific tour-bus accident on the Upper West Side, police sources said. Richard Bright, whose piercing blue eyes and dark hair saw him often cast as a cop or criminal, crumpled to the ground as he was hit by the rear wheel of an Academy bus at about 6:30 p.m. as it turned left on Columbus Avenue at 86th Street, according to witnesses. The driver was unaware of the accident until he reached the...