A new documentary on Ernest Hemingway—powered by vast but little-known archives kept at the John F. Kennedy Presidential Library and Museum in Boston—is shedding new light on the acclaimed novelist. Hemingway, by longtime collaborators Ken Burns and Lynn Novick, premiering on PBS on three consecutive nights starting April 5, takes a more nuanced look at the author and his longstanding reputation as an alcoholic, adventurer, outdoorsman and bullfight-loving misogynist who struggled with internal turmoil that eventually led to his death by suicide at age 61.