The mysterious viral marketing campaign for "Iron Man 2" is at an end — for now at least — with the final result being the world premiere of the movie's first official trailer.

Unveiled this week, the "Iron Man 2" trailer provides our best glimpse yet at Tony Stark (Robert Downey Jr.), War Machine (Don Cheadle), the Black Widow (Scarlett Johansson) and more in the Jon Favreau-directed Marvel movie.
While today's earlier Entertainment Tonight teaser has already provided us with a healthy indicator of the movie's plot, there's truly nothing like seeing the real thing in all of its high-definition glory. Here are just a few of our favorite moments from the trailer:
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A pair of "Iron Man 2"-themed promo spots for tonight's episode of "Entertainment Tonight" have hit the 'Net, and the ads offer up quite a bit of new footage from the much-anticipated sequel to the 2008 blockbuster — including the first official footage of 
The viral marketing campaign for "Iron Man 2" continues to roll on, as the third and latest fictional newspaper clipping has appeared online.
Tony Stark has donned plenty of armors that would be better