It's been rumoured that Kmart started selling early copies of Modern Warfare 3, and this YouTube video looks to back that up. The video's creator claims he went in and grabbed a PS3 copy of the game, paid for it, and took it home. His copy of the game certainly looks legit.
He then shot this video, which shows a (quiet, not-great-quality) recording of the game's menus and opening sequence. Obviously, there are spoilers for the game's opening here, so watch at your own risk.
UPDATE: Reader Dan sends us a much better version of the intro, which we've dropped in. Thanks!