'Abigail' Directors on 7,000 Gallons of Blood and 'Ready or Not' Sequel Plans (Exclusive)

'Abigail' directors Matt Bettinelli-Olpin and Tyler Gillett chat with ET's Ash Crossan about the 7,000 gallons of blood it took to bring the ballerina vampire flick to life. Plus, the Radio Silence duo give an update on their 'Ready or Not' sequel plans. 'Abigail' dances into theaters April 19.