After several years in the wilderness, Harvey Weinstein has come roaring back (if a bit less loudly) into the moviemaking sweet spot, winning raves for The King’s Speech, The Fighter, and Blue Valentine. But his bitter war with Disney over Miramax, the crushing blow of losing the company (named after his parents) a second time, and his attempt to build a multi-media empire — all have left their scars. Bryan Burrough learns about the darkest hours of a man who, love him or hate him, may be the last true impresario.