"... a 35mm copy of the recent 'The Dark Knight' trailer was given by raffle to a random person in each city that had a screening. The hope was that someone would digitise the footage so we wouldn't have to wait til Sunday for a good quality copy. Well someone tried and discovered that the prints have been 'defaced' by the Joker..." --http://www.darkhorizons.com/news08/080502l.php

"The Joker-ized trailer (for The Dark Knight) that was given out as prize to one lucky winner in a viral scavenger hunt here in Chicago on Monday 4/28." --http://digg.com/movies/The_Dork_Knight