United ArtistsThere are so many iconic moments in the first film of the Dollars Trilogy, and it's easy to see why the films that followed became so successful with such a strong foundation to build upon. Clint Eastwood became a star because of his performance as the casual, cigar-chewing cowboy Joe, and although Eastwood initially refused future Leone films on the grounds that the characters were so similar he still made a career out of Westerns in the years following. The plot of A Fistful of Dollars is relatively simple - two warring families are further pitted against each other by Eastwood's fast-drawing gunslinger. But Leone's first Western was real in a way that the genre had previously not seen - the men were sweaty and poorly-shaven, the streets were sandy, the taverns were smoky and full of sin. Since then, nearly every film about the American West has followed this formula. And when Clint Eastwood passes a coffinmaker, orders three new boxes, and then corrects himself upon shooting a fourth man, it's hard not to recognize how important the script is to the flow of the film. Plus, if he had never used a cast iron plate as a bulletproof vest, Marty McFly would never have been able to get out of that pickle with Buford Tannen.