To celebrate the launch of the film Watchmen, Doctor Manhattan has appeared over the Thames to the surprise of London residents on Wednesday night (4th March 2009).

The blue skinned superhero appeared over London's river and towered over 70 feet, floating in the air.

This fantastic PR stunt was created by using the worlds largest water screen projector which was anchored between the London Eye and the Shell Building. The effect was created by a vertical sheet of water that extended 72 feet high and 100 feet wide, which a projection was then screened through.