You think you’ve seen the last of the Watchmen marketing blitz? Think again.

Yesterday in London, the world’s largest water screen projector was wheeled out to the Thames where a series of Watchmen ads were projected on a wall of water created with a high power hose. You know how we project things on movie screens? Well, replace the screen with an oversized sprinkler and you get the idea.

A Dr. Manhattan projection stood about 70 ft tall, occasionally switching to the Comedian’s bloody pin or the Watchmen logo itself.

Check out some video via /Film under the cut…