Sony has since created numerous other film production and distribution units, such as creating Sony Pictures Classics for art-house fare, by forming Columbia TriStar Pictures (also known as the Columbia TriStar Motion Picture Group) by merging Columbia Pictures and TriStar Pictures in 1998, revitalizing Columbia's former television division Screen Gems. It expanded its operations on April 8, 2005, when a Sony-led consortium acquired the legendary Hollywood studio Metro-Goldwyn-Mayer, in a US$4.8 billion leveraged buyout, through the holding company MGM Holdings Inc.