The advert offers a first, brief glimpse of JRR Tolkien's villainous dragon Smaug as he attacks a city.
Benedict Cumberbatch will voice the creature, who makes his nest in an abandoned dwarven kingdom full of treasure.
The tale centres around Bilbo Baggins (Martin Freeman), who is enlisted to help the dwarves reclaim their ancestral home from Smaug.
The Hobbit: An Unexpected Journey - Gallery
The film received its world premiere in Wellington, New Zealand, last week on Wednesday (November 28).
The Hobbit: An Unexpected Journey will open internationally on Friday, December 14.
Watch a trailer for the movie below: