Witcher 2: Apparent 'Internal Trailer' Leaked

It seems that someone has leaked a confidential trailer of CD Projekt's (and Atari or TradeWest's) Witcher 2: Assassins of Kings. Aside from the hilarious English accents towards the end, the game itself doesn't appear to be too shabby. See for yourself below - until it gets pulled from the Internet of course... and if it doesn't get pulled, well, not much of a confidential leak really was it?