Britney Spears appears to be settling in on the strip after raising the curtain over the weekend on her Las Vegas show. The 32-year-old "Toxic" star earned favorable reviews after her opening performance on Friday, (Dec. 27). Spears is expected to perform around 50 shows a year during her two year run at the Planet Hollywood Resort & Casino.<br/> <br />"The Hobbit: The Desolation of Smaug," the special-effects-laden tale that pits dwarfs against a dragon, blasted to its third consecutive box office title, collecting nearly 30 million dollars (USD) over the holiday weekend.<br/> <br />Disney's animated film "Frozen" was second with ticket sales of 28.8 million in its third week, ahead of Will Ferrell's quirky comedy "Anchorman 2: The Legend Continues" that collected just over 20 million at domestic theaters.<br/> <br />"American Hustle," which reunited director David O. Russell with his "Silver Linings Playbook" stars Bradley Cooper and Jennifer Lawrence, rounded out the top four.<br/> <br />It was not su
