1) Official title is Thor : The Dark World.
2) Known villain is Malekith The Accursed, ruler of the Dark Elves of Svartalfheim which will be played by Christopher Eccleston.
3) In Marvel comics, Malekith was freed by Surtur of Muspelheim and ordered to join forces with Loki to secure the Casket of Ancient Winters in Thor #344 (1984). Loki was beheaded by Balder in the same issue.
4) No mention of whether Surtur or Balder will be appearing so far but casting calls indicates “fire breathing warriors” which could be inhibitants of Muspelheim.
5) The movie’s code name is Thursday Mourning under ‘production company’ Asgard Productions II UK Ltd.
7) Thor 2 will be directed by Alan Taylor (Game of Thrones). Script will be written by Don Payne (Thor) and Robert Rodat (Saving Private Ryan).
8) Confirmed cast members returning are Chris Hemsworth (Thor), Tom Hiddleston (Loki), Jamie Alexander (Sif), Idris Elba (Heimdall), Natalie Portman (Jane Foster) and Stellan Skarsgård (Dr. Erik Selvig). Zachary Levi will be replacing Joshua Dallas as Fandral.
9) Sir Anthony Hopkins is still under negotiation to return as Odin as he is being courted by Summit Entertainment for the role of Edward Bailey, the villain in Red 2.
11) Scheduled to be released on November 8, 2013.
12) Casting calls for extras in London and South East of England: “18-50 years old male/female with military experience and ability to march in formation.”
13) Casting calls for “men who are skilled in playing with fire to pretend to be warriors” and are required to be “highly skilled with playing with fire, example skills include - Spinning, Fire Sticks, Fire Breathing, Fire Eating etc.”
14) “Thor’s relationship with Loki will continue to evolve, and the biggest part is Natalie and Thor returning with Jane Foster.”
15) “I think they’re going to need a good mom in the next film. Loki needs his mom. I have a lot of compassion for him. But we might have to have a conversation about what he just did. ”