The first official trailer for the upcoming film Thor: The Dark World has been unveiled, giving fans a fresh glimpse into the eagerly anticipated follow-up. Chris Hemsworth and Natalie Portman reprise their roles as Thor and Jane Foster respectively while newcomer Christopher Eccleston stars as the new villain. From the trailer, it would appear that Asgard, the home of the gods, will be featured more heavily. Also making a return is Loki, who strikes up an uneasy alliance with Thor. Check out the trailer now and stay tuned for more from Thor: The Dark World.