Only on the CBS This Morning podcast, a special Halloween double feature. CBS News contributor Jamie Wax speaks with the siblings behind the most successful horror movies this year - IT and Jigsaw. Director Andy Muschietti and producer Barbara Muschietti discuss how IT became the highest-grossing horror film of all time, what made Bill Skarsgard's Pennywise so scary and what to expect in the sequel. The Spierig Brothers discuss taking over the Saw franchise with Jigsaw - currently the number one movie at the box office. Peter and Michael talk about their inspirations, the horror genre and what is next for the duo.