Hollywood actors often appear in foreign commercials, but the spot featuring Mr. Chase has the unusual twist of promoting a local cola brand, Cola Turka, over its American rivals at a politically charged moment. Attempts to reach Mr. Chase or his agent for comment were unsuccessful on Friday. 'Drinking America' "You are drinking America, you are not drinking a soda," said Serdar Erener, referring to the U.S. cola giants Coke and Pepsi. Mr. Erener is the CEO and creative director of WPP Group's Young & Rubicam, Istanbul, the advertising agency that created the spots. Mr. Erener said the brand's launch...