Get ready for a darker Harry Potter. The new full-length trailer for the two-part epic 'Harry Potter and the Deathly Hallows' reveals the trio of Harry, Ron and Hermione has grown up and into some seriously dark territory.

Both Harry and his lifelong nemesis Voldemort are looking worse for the wear, and the trailer focuses mostly on the inevitable conclusion to their struggle -- good vs. evil in a final wand-waving showdown.