The first trailer for Harry Potter and the Half-Blood Prince has just arrived online (watch it above or over on Moviefone in glorious HD), and, well, wow -- is it creepy or what? Not a ton of Harry, but we get our first look at Tom Riddle (as the young Voldemort) and it's clear we're heading in a very dark direction. It's a different trailer, I think, than we all expected -- and it doesn't come with all your usual montage-shots-as-the-music-builds kinda stuff. That's not to say we won't get all that in the next trailer ... and, truth me told, I definitely dig what they did here. Move over Twilight, our friend Harry Potter is back in theaters on November 21.

What did you think of the trailer?