I have seen the future, and it contains lots and lots of power armor suits. And lots of movies about guys in power armor suits. Robert Downey Jr. does great work as billionaire supra-genius playboy hero Tony Stark. The plot I won't bother to summarize here, seeing as you seen the trailer and know the gist. Interestingly enough the movie carries a pretty strong critic of the international arms industry. The morality tail goes astray however, as the answer to high tech weapons seems to be even awesome weapons. But still awesome, none the less. The other message of the movie seems to be don't trust anyone without hair. Gwyneth Paltrow seems to have wandered in on those great legs of hers from some 1950's workplace romantic comedy.
But all told I must recommend this movie. Well done.