Superhero thunder god Thor is back for the second movie in the franchise. In "Thor: The Dark World" he's teaming up with his trickster brother Loki to fight the greater evil of the Dark Elves.<br/> <br />To launch the film, Thor's hammer came crashing down in London for one of the biggest launches held there. Taking up nearly half of Leicester Square, it should have been nerve-wrecking for the stars - but not for Hemsworth who found it all quite comforting.<br/> <br />(SOUNDBITE) Actor Chris Hemsworth (English), saying:<br/> <br />"Oh look, it's the third time around playing the character, there's certainly a slight sense of ownership with it but you always have the same anxiety and coming here and seeing this kind of crowd, it puts that to sleep a bit and then you feel a little more confident that you've done the right thing. I just feel lucky to be part of this, this Marvel madness, it's amazing."<br/> <br />Hemsworth's co-star Tom Hiddleston has made a name for himself on the internet recently, goin
