The director Sophia Takal is working on a remake of “Black Christmas,” an early slasher flick from Canada, in which sorority girls are picked off by a gruesome killer. Takal brought a very 2019 sensibility to the remake, reflecting on the ongoing struggle of the MeToo movement. “You can never feel like you’ve beaten misogyny… . In this movie the women are never given a rest, they always have to keep fighting.” Her producer, Jason Blum, of Blumhouse Productions, talks with David Remnick about the success of horror movies with a political or social message, like Jordan Peele’s “Get Out.” And the humor writer Colin Nissan combines four scary plots into “The Scariest Story Ever Told.”