Disaster movie 2012 inspired panic in the States with Nasa having to reassure Americans that the world wasn't about to end. Is movie viral marketing getting too clever for its own good?When Columbia Pictures launched a marketing campaign for 2012 – the latest disaster movie from serial Earth molester Roland Emmerich, where the planet, played by America, is set for impending doom – they didn't do it by halves.First, there was a teaser trailer showing a tsunami crashing over the Himalayas. The Earth was going to end in 2012, it said, and the world's governments aren't doing enough to prepare us. Search "2012", it said, for "the truth" (the "truth" turned out to be over 1,000 real websites and 175 ...