13. Once Upon a Time in the West (1968)
There are a minute number of Westerns more iconic than Sergio Leone’s magnum opus, which melds elements of classicism and the Spaghetti subgenre together to create an epic for the ages. Backed by perhaps the single most grizzled ensemble of actors ever gathered together, the maverick filmmaker crafted an extravagant ode to the Old West that’s violent and yet beautifully operatic.
Martin Scorsese, George Lucas and Quentin Tarantino have all named Once Upon a Time in the West as a direct inspiration, and that’s only the tip of the movie’s lasting influence on the industry.