Danny Glover, Thandie Newton and Oliver Platt are the latest to join Roland Emmerich’s 2012, Columbia’s epic disaster project that centers on a global cataclysm and tells the heroic struggle of the survivors. Glover is in talks to play the president, with Newton in discussions to play his daughter. Platt is in negotiations to play the president’s chief of staff. John Cusack and Chiwetel Ejiofor already are on board. Emmerich is directing a script he penned with his “10,000 BC” co-writer Harald Kloser. He is serving as an exec producer with Michael Wimmer and Ute Emmerich. “2012″ was shopped around with a $200 million budget, but Columbia said it will be made for less than that. The studio is planning a July 10, 2009, release, with filming set to begin in July — unless there is an actors strike.