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.

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.