Andrés Muschietti (; born 26 August 1973), usually credited as Andy Muschietti, is an Argentine movie director and screenwriter. He is best known for directing the 2013 horror movie "Mama" and the "It" duology starting with "It: Chapter One" (2017) and the 2019 sequel "It: Chapter Two". He will also direct the 2022 DC Extended Universe movie "The Flash".