Jackie Earle Haley in A Nightmare on Elm StreetBreak out the Red Bull and get ready to (nine, ten) never sleep again: Freddy Krueger, everyone's favorite knife-fingered, red-and-green-sweater-clad, burnt-faced murderer, is set to haunt dreams once again next spring ... and now there's a creepy new trailer to prove it. Watch it after the jump.