The BBC's highly-anticipated sci-fi drama, The War Of The Worlds, has dropped it's first trailer. Veering away from the 2005 Hollywood version - which starred Tom Cruise, was helmed by Steven Spielberg and was set in the present day - the three-part series takes place in Edwardian England, harking more accurately back to the source text. The novel - written by H. G. Wells and published in 1897 - sees martians, in the form of giant, spindly-legged machines - attack Earth, on hunt for resources.