'Harry Potter and the Half-Blood Prince': A new clip!

Daniel Radcliffe, Emma Watson, and Rupert Grint introduced a new clip from Harry Potter and the Half-Blood Prince on Sunday night's MTV Movie Awards. With it, we, like Harry, get to experience the first time Dumbledore met Tom Riddle (a.k.a. a young Lord Voldemort). Is Tom's smile creepy enough for you? Part of me wants more. Part of me is already curled up in a ball...