Republican Rudy Giuliani once derided Hollywood in his Senate bid against Hillary Rodham Clinton. Today, as he pursues the presidency, he's collecting checks from actors Adam Sandler and Kelsey Grammer, and Paramount studio chief Brad Grey. The entertainment industry has always been a wealth of cash for political candidates—a whopping $27.5 million in the 2004 election cycle—and Democrats traditionally have been the top draw. In the last election, $7 out of every $10 from the industry went to Democrats, according to the Center for Responsive Politics. Yet, the latest campaign finance reports show Republicans making some inroads, not only with...