"Some naughty person went into The Walking Dead trailer screening at Comic Con, recorded it and uploaded the footage onto Youtube.

Of course this is highly contentious and just not cricket and we expect it’ll be taken down faster than a speeding bullet when the lawyer-hounds get a sniff of it and start barking like junkyard dogs: so hurry the Sam Hill up if you want to feast your eyes upon it!"

http://www.filmshaft.com/walking-dead-trailer-footage/