Of course, the Star Wars Episode III teaser trailer is leaking all over the web today. It seems a bit stilted and rough, but my first reaction in the wake of the election is that Anakin's conversion to the dark side, and Emperor Palpatine's evil voice summoning Darth Vader, "Rise..." all feels quite appropriate.
If you want to track down a copy, use your favorite search engine. I found a Quicktime mirror and a BitTorrent, though I'm sure it's spread much wider by now. Or catch a midnight showing of The Incredibles.