Sky Movies speaks to the the cast and crew of Marvel?s blockbuster action sequel Thor: The Dark World. Faced with Malekith (Christopher Ecclestone). a foe that even Odin and Asgard cannot resist, Thor (Chris Hemsworth) must embark on his most perilous and personal journey yet, one that will reunite him with Jane Foster (Natalie Portman) and force him to sacrifice everything to save humanity.