Generally speaking, I'm not a big fan of game previews or watching pre-release footage online. I guess, as a reviewer, I've always felt it was better to come into a game cold and experience it fresh on my first playthrough. Even when I'd attend E3 in years past, I was hesitant to spend too much time playing pre-release builds of games because I didn't want anything to spoil my experience with the full version.
That being said, I've broken my rule (albeit slightly) with Valve's Left 4 Dead. I don't think I've been this excited for a zombie game since Resident Evil 2—so when the intro movie appeared online on Halloween, I fought the urge to watch it. I made it through the weekend before finally caving. So, here it is—a few days late, but still very cool—the opening cinematic for Left 4 Dead.
Start practicing your headshots—the game hits retailers on November 18th.