Thor: The Dark World

Thor: The Dark World is an upcoming American superhero film featuring the Marvel Comics character Thor, produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures. It is intended to be the sequel to 2011's Thor and the eighth installment in the Marvel Cinematic Universe. Alan Taylor directed the screenplay by Christopher Yost, Christopher Markus and Stephen McFeely, which stars Chris Hemsworth, Natalie Portman, Tom Hiddleston, etc.

In August 2013, IMAX Corporation and Marvel Entertainment announced that the film would be digitally re-mastered into the IMAX 3D format and released into IMAX 3D theatres internationally beginning October 30, 2013. Thor: The Dark World is scheduled to be released on October 30, 2013 in various international markets and on November 8, 2013 in the United States.

One year after the events of The Avengers, Thor battles to save the Nine Realms from a mysterious enemy older than the universe itself. A primeval race led by Malekith, who is out for revenge, intends to plunge the universe into darkness. Confronted by an enemy that even Odin and Asgard cannot overcome, Thor must reunite with Jane Foster and set out on a dangerous journey that will force him to make the ultimate sacrifice.

(Source: http://en.wikipedia.org/ )

The others poster:

And you can check the trailer Thor: The Dark World below:
(by: Fresh Movie Trailers )