"I'd Like to Buy the World a Coke" was released in the U.S. in July 1971 and immediately struck a responsive chord. The Coca‑Cola Company and its bottlers received more than 100,000 letters about the commercial. Many listeners called radio stations begging to hear it. Five hundred young people were hired for the chorus from embassies and schools in Rome. This was a substantial reduction from the original rained-out chorus. A British governess Davis and Gabor found pushing a baby carriage in the Piazza Navona was hired for the lead female role. The Italian film company Cesare Taurelli's Recta Film filmed the commercial and this time the weather cooperated. Close-ups of the young "leads" were actually filmed at a racetrack in Rome, separate from the larger chorus shots. Some of the distinctive camera angles were forced on the crew as they tried to avoid power and telephone lines.

Source: Coca-Cola Company