No, Mister Johnson (1965)

Brimming with ambition, John Johnson, the best sales representative of a loved American food brand, arrives in Athens, Greece, to promote the famous "Red Horse" tomato juice. Without delay, Johnson gets to work using every trick in the book to make the otherwise excellent product known to the Greek consumers, including the aid of the beautiful and talented pop singer, Eleni. But, as Johnson tries his best to understand the Greek people, love comes knocking at his door. Will Johnson's juice be a success? Above all, will the kind American in Greece embrace change?