Naughty Dog: Entire Uncharted 3 trailer was “in-engine and actual gameplay”

Naughty Dog’s just confirmed that the entire Uncharted 3 trailer footage was made from the in-game engine and that all the gameplay footage was taken from the actual game

They confirmed this news by a tweet

Yes, #UNCHARTED3 trailer was all from in-engine + actual gameplay. 11-1-11!!

As you all know, the game will be releasing on November 1st, 2011 and is exclusive to PS3.