To mark the return of Pennywise in It: Chapter 2 (and the Joker in… Joker), we take a peek behind the makeup. Clowns look like us, but there's something a little bit off... and filmmakers from the dawn of cinema have exploited that uncanny, unnerving quality to terrifying ends. But how was the cinematic image of the ‘monstrous clown’ formed? And what is it about clowns that is so scary? Show less