Responsible for popularizing "spaghetti" Westerns (Westerns made in Italy and Spain, usually with a US leading actor and a European supporting cast and crew) and making a world star of Clint Eastwood. His films include Per un pugno di dollari/A Fistful of Dollars 1964, C'era una volta il West/Once Upon a Time in the West 1968, and C'era una volta il America/Once Upon a Time in America 1984.