Becoming the 15th movie in history to do so, 'The Hobbit: An Unexpected Journey' passed the $1 billion mark this past week, the second in Peter Jackson's 'Lord of the Rings' films to do so. But how much further can it go?

Just barely passing the monumental mark, 'The Hobbit' ended the weekend with with $1,001.1 billion, partially thanks to a big boost received after it opened in China last week with $18 million (evidently the fourth biggest three-day opening ever for a U.S. movie). The film, the first in a new trilogy from Jackson, has made $700 million overseas against $301 million grossed in the U.S.

'The Hobbit' likely isn't done ascending the all-time box office list either. It's a cinch to pass 'The Dark Knight' (#14 with $1,004 billion), 'Alice in Wonderland' (#13 with $1,024 billion) and 'The Phantom Menace (#12 with $1,027 billion). Time will tell if it gets to #10, which is currently held by 'Toy Story 3' and its hefty $1,063 billion haul.

If it does reach that mark, there's a distinct chance the top ten will be riddled with J.R.R. Tolkien adaptations when it's all said and done. 'The Hobbit: The Desolation of Smaug' opens on December 13th this year, while 'The Hobbit: There and Back Again' comes out on December 19, 2014. The remaining two films will likely join 'An unexpected Journey' in being gigantic blockbusters; but could all three 'Hobbit' films really end up in the top ten of all time?

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