The makers of Iron Man 2 should be commended for preserving most of the things that made part I so successful, without overdoing anything. Robert Downey Junior is wonderful as ever (though his playboy antics walk a very fine line between amusing and over-the-top). And Gwyneth Paltrow is lovely and charismatic as Pepper Pots, a rare superhero love interest who is attractive, intelligent and dignified in an understated way, which is something you don't often see in action pictures where women's independence is acceptable as an over-the-top novelty.

Unfortunately, the goodwill generated by Paltrow's performance as an effortlessly worthy woman is squandered a bit on Scarlett Johanson, who is physically beautiful, but subscribes to the female-in-an-action-movie norm. She is too skinny to be a viable action hero, and dressed so slinkily that her sole function is clearly that of a sex object.

The biggest problem with this movie is Samel L. Jackson, who has played the same role so many times he kills your suspension of disbelief. The man on screen is clearly Samuel L. Jackson wearing an eyepatch. His presence serves only as a distraction. Don Cheadle is a fine actor, but no better than Terrence Howard, and its a shame the filmmakers couldn't have brought him back.

Otherwise, the film has some problems with logical plotting and characters' motivations aren't always clear (i.e. the brawl between Iron Men at Tony's birthday party). However, it is funny, entertaining, exciting, and subtly thoughtful, with implications about world peace and arms dealing which feels like a breath of fresh air amidst all the current action pictures' assumption that their audiences have a 2nd grade comprehension level.

The bottom line is, if you liked part I, you'll enjoy part II.