In the mid-1960s an unknown Italian film director named Sergio Leone was given $200,000 and some leftover film stock, and he went to make a Western. With an American TV actor named Clint Eastwood and a script based on a samurai epic, Leone wound up creating "A Fistful of Dollars", the first in a trilogy of films (with "For a Few Dollars More" and "The Good, the Bad, and the Ugly") that was violent, cynical, and visually stunning. Along with his later...