"Did you know, Sir? Then?"

Here is the teaser to Harry Potter And The Half-Blood Prince, which debuts in theaters on Friday (go here for downloads). It's an incredibly confident teaser, with two brief shots of Harry and not a glimpse of Hermione, Ron, or Snape. The only flaw comes at the very end, when they have a flash of 'you know who', and they pick the cheesiest, least frightening shot from the last movie (you'll know it when you see it). Better to have not even revealed who that young child is, as if anyone watching couldn't figure it out. Other than that, it's a fantastically creepy and moody teaser.

Scott Mendelson