Warner Brothers has posted the announcement trailer for The Hobbit: An Unexpected Journey to their YouTube channel, as of December 19th. The film, slated to be released on December 14, 2012, will be the first of the two movies planned to tell the story from Tolkien’s The Hobbit, along with some additional material from other related works.

http://www.youtube.com/watch?v=eM–4UklaL4