Deadline: Sony Pictures Classics is making a big $6 million U.S. deal for “Truth,” the James Vanderbilt-directed film about the “Rathergate” scandal that ended the careers of veteran CBS newsman Dan Rather and “60 Minutes” producer Mary Mapes. This after they spearheaded an expose that then-U.S. president George W. Bush had ducked serving in Vietnam after graduating Yale in 1968 by getting a cushy no-show post in the National Guard through the clout of his father.