Today’s deadline for Sumner Redstone’s National Amusements to repay $800 million in debt has “has been extended as the company makes headway in negotiations with its banks,” the WSJ reports–even as he and Shari Redstone remain at adds over the solution. “Shari, who runs the movie theaters, remains deeply opposed to sacrificing them and has been putting pressure on her father and his advisers to consider other asset sales. The disagreement has become so heated that Ms. Redstone and her father are only communicating by fax, according to people familiar with the situation.”WSJ