Evangeline Lilly in "The Hobbit: The Desolation of Smaug"
Evangeline Lilly in "The Hobbit: The Desolation of Smaug"

As Peter Jackson's new and improved three-hour "The Hobbit: The Desolation of Smaug" arrives in theaters December 13, a new video has landed with a behind-the-scenes look at the 3-D wizardry in the film, guided by Jackson himself. (Our review and round-up is here.) Watch below. 

Plus, read Jackson's letter explaining how he brought singer-songwriter Ed Sheeran on board to pen and perform "I See Fire," which is getting a Best Song Oscar push from Warner Bros. (Sheeran's "I See Fire" video, posted by Jackson, is also below.)

 

Peter Jackson letter "I See Fire"