Movie power rankings: 'The Hobbit' defeats 'The Avengers' and 'Wolverine'

Trolls. Glowing swords. Gandalf back in his grey duds. Must be time for a new trailer for "The Hobbit: An Unexpected Journey." The first of three films based on J.R.R. Tolkien's book, Peter Jackson's upcoming film promises to return movie fans to the elaborate fantasy world of his smash hit "Lord of the Rings" trilogy.