Get ready for another trip into Middle-earth!

Warner Bros. released the much-anticipated trailer for The Hobbit: An Unexpected Journey on Tuesday.

Helmed by the Lord of the Rings trilogy's director Peter Jackson, the epic fantasy flick -- out Dec. 2012 -- is based on the late J.R.R. Tolkien's Hobbit, which was an all-important prequel to the classic "rings" trilogy.

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British star Martin Freeman (who shot to fame on the British version of The Office) plays Bilbo Baggins, unexpectedly swept into a missionto save the Dwarf Kingdom of Erebor. The unassuming Bilbo's incredible journey puts him face to face with Gandalf (Ian McKellan, reprising his role), goblins, orcs, shapeshifters and more.

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While traveling in the goblin tunnels, Bilbo meets the creature Gollum -- and gains possession of a precious omnipotent ring that will change his world for generations to come.

Watch this trailer -- also featuring Cate Blanchett, Orlando Bloom and other familiar LOTR faces -- now.

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