It's hard to get the attention of increasingly distracted people these days. One way to do that: Have the star of your movie pull a gnarly, disgustingly long strand of hairy yarn (or ... yarny hair?) out of their mouths. Well done, Orion Pictures; now you have my attention. The first trailer for Gretel & Hansel, a flip on the classic Grimm Brothers fairy tale, sees Sophia Lillis (IT) leading the pic about a brother-sister duo who find themselves in the grip of a child-eating witch. We're getting serious The VVitch and The Village vibes off of …