SUN VALLEY, Idaho (AP) — Clint Eastwood has become Mitt Romney's highest-profile celebrity supporter. The "Dirty Harry" star and Oscar-winning director of "Unforgiven" and "Million Dollar Baby" endorsed the Republican presidential candidate Friday night during a Sun Valley fundraiser. Eastwood told The Associated Press he thinks "the country needs a boost" as he joined other Romney supporters for the private campaign event. He says he hopes Romney would restore "a decent tax system" that doesn't pit people against each other. A campaign spokesman could not immediately say whether Eastwood will play an active role in the campaign. About 325 people paid as much as $25,000 apiece to attend the event. Eastwood is a part-time resident of Sun Valley.