After a spectacular start with Iron Man a couple summers ago, one would have hoped for an even better sequel, considering the fortunes of the Spiderman, X Men, and Batman franchises of late, whose sophomore efforts took their series to dizzying new heights. Not so here, although Iron Man 2 is definitely not a step down either. Consider it on par with the original film and as such, a pretty entertaining, well made Marvel Comics screen entry, and it boasts another strong performance by Robert Downey, Jr. as the hero.

Picking up where industrialist genius, Tony Stark, reveals himself to be Iron Man, the folks in Washington D.C., namely the military and Congress want the technology. He defies the Senate panel by declaring the armor as private property that has brought world peace. Stark's competitor, Justin Hammer (Sam Rockwell) is desperate to claim the military's approval for armored weaponry. Stark's main girl, Pepper Potts (Gwyneth Paltrow) is trying to help him run Stark Enterprises despite Tony's childish antics and thrill seeking. His buddy, Lt. Col. Jim Rhodes (Don Cheadle taking over for Terrence Howard), is under pressure by the military to get the Iron Man technology. A new assistant, Natalie Rushman (Scarlett Johansson), has a mysterious background. All this as Starks' blood is beginning to get poisoned by his ebbing, artificial heart.

Enter the Russian, Ivan Vanko (Mickey Rourke), whose father was snubbed by Stark's dad. He has developed a body armor that has electric whips, while Hammer provides him the resources to exact revenge. Stark must come to terms with the distant relationship with his late father as he desperately searches for an answer to his failing heart. As Hammer presents his new military hardware to an audience, Ivan and Tony engage in a battle royal.

What the filmmakers needed to do (and could have done a bit more) was to let Downey carry the film on his shoulders; he's certainly earned the right to flex his acting muscles after Iron Man. Here, he shows off his flair for being a bad boy whose arrogance is matched by his tech savvy, and he is a hero confronting his inner demons and pain which are directly related to the fallout with his father. It is interesting how poppa Stark is portrayed in newsreel footage as a kind of Industrial version of Walt Disney complete with a topographic industrial plan instead of a theme park.

Downey and Paltrow have good repartee and a smooth chemistry even when they argue. The dialogue is snappy and at times funny courtesy of screenwriter Justin Theroux (Tropic Thunder) and director Jon Favreau who still knows how to convey the fantasy world of super heroes, and there are enough twists and surprises to keep things humming along.

Rourke is sufficiently menacing as Ivan, spouting Russian and a dark, defiant persona. Samuel Jackson repeats as Nick Fury, the head of S.H.I.E.L.D., a secret organization that is attempting to assemble 'The Avengers Initiative'. Johansson is on screen too briefly but there is a nice payoff where she comes through in fine form, or should I say fighting form. As a US Senator, comedian Garry Shandling is stunt casting but proves a bit of a distraction; you just can't take his character seriously. Marvel co-creator Stan Lee makes another brief cameo, and Favreau is amusing in a larger supporting role of Happy Hogan.

Special effects are impressive and ably serve the story. That suit of armor still wows and functions in true comic book form. There is a familiar, circular prop that appears in a crucial scene that Marvel fans will want to note! Stunt work and the fight choreography that involves Johansson's character is fun to watch but you wish there were more.

Favreau has shown a knack for comic heroes, but he has not made the big step to improve on his franchise. Perhaps in Iron Man 3 he can break the curse that has plagued super hero franchises that fell down in their third films. By the way, do stay after the credits for an interesting clip that hints at the ever growing Marvel Universe.