Sony has signed an NDA with Paramount Global, a move that will give it access to the books and allow deal talks to move ahead, Deadline hears. Sony and private equity giant Apollo kicked things off previously with a preliminary bid of $26 billion, but what’s being contemplated now is not that, but something narrower. A look at the books is necessary to move forward in any case. The non-disclosure agreement comes two weeks after a Paramount’s monthlong exclusive negotiating window with David Ellison’s Skyd ...