At 8.00 pm on March 4th, Thames river lit up with a 100 foot tall ghostly visage of Dr. Manhattan marking the release of 'Watchmen'.

The whole thing was pulled off thanks to an enormous water screen and the largest projector in the world. A shot of the Comedian's smiley badge was also projected onto the side of a building in London, as well as exclusive, specially-made footage to promote the movie.

(One more video after the jump)

[Dvice]