Thi preview of The Hobbit: An Unexpected Journey is a 2012 epic high fantasy adventure film based on a reluctant Hobbit, Bilbo Baggins, sets out to the Lonely Mountain with a spirited group of dwarves to reclaim their mountain home, and the gold within it from the dragon Smaug. This movie is not enough to understand everything behind The Hobbit and the story behind it, but it does give a nice illustrative try to simplify things.