The water tower at Paramount Pictures Studios, a division of Viacom, Inc. is pictured in Los Angeles, California July 29, 2008. Viacom Inc., the owner of MTV Networks, posted a better-than-expected quarterly profit on Tuesday, boosted by box office hits "Iron Man" and the latest "Indiana Jones," but U.S. cable network ad sales growth fell below the company's projections. The New York-based owner of Paramount movie studios and the Nickelodeon cable network said second-quarter net profit fell to $407 million from $434 million a year earlier. REUTERS/Fred Prouser (UNITED STATES)