David Arquette and Robert Englund on why horror is more popular than ever; Michelle Obama talks new book, 'The Look' -- We catch up with Scream star David Arquette and Freddy Krueger himself Robert Englund at Scarefest to talk about the legacy of their horror franchises and why slasher films are having a renaissance -- WATCH NIGHTLINE EPISODES: https://abc.go.com/shows/nightline