Marvel's Thor: The Dark World finally hit theaters last night, opening strong with an estimated $7.1 million from 10 PM and midnight screenings nationwide. That figure is nearly double the $3.3 million that Thor earned in May 2011. Thor went on to earn $66 million in its first weekend, ending its run with a worldwide total of just under $450 million. In addition, Marvel has released one final TV spot for this Phase Two adventure. Check out the video, then read on for more on Thor: The Dark World's box office prospects.

The sequel has already crossed the $150 million box office plateau internationally, just four days after it broke $100 million in overseas markets. This tally essentially guarantees that it will surpass Thor's $268 million international total.

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The superhero adventure starring Chris Hemsworth, Natalie Portman and Tom Hiddleston opens in several key international markets today, including China, which puts the film out in over 92% of the world.

The Marvel Phase Two sequel opens in 3,841 theaters nationwide starting today, 3,100 of which are in 3D. Do you think Thor: The Dark World has a shot at breaking $100 million in its first domestic weekend? Chime in with your thoughts below.