A successful sequel should simply do everything that the first movie did, but more. Iron Man 2 does that. It adds more backstory, more character development, more characters and more action and special effects.
Iron Man 2 picks up where the last movie left off. Tony Stark’s mechanized suit and it’s limitless power source is the new most powerful weapon on the planet. Because of its existence, all countries have backed down due to Tony working with the U.S. government and the United States now possessing unrivaled military supremacy because of it. When a new enemy appears who seemingly has developed a suit and power source similar to Tony’s, Tony Stark must now advance his technology even further to defeat this new enemy and maintain the peace established by him and his Iron Man suit.
The same light hearted tone from the first movie is maintained in this one and this film is all the better for it. It’s what most people loved about the last film and Robert Downey Jr.’s performance. There is also plenty of action and there are higher quality special effects and more of them.
The biggest addition to this film is the introduction of Natasha Romanov, or the Black Widow. This is Scarlett Johansson’s first appearance in the Marvel movie universe and the beginning of a long career making these Marvel movies. She’s great and I always wondered why it took so long for her to get her own superhero movie since she’s undoubtedly an A-list actor. I later learned from Bob Iger’s memoir that it was because Ike Perlmutter –a powerful figure in Marvel and then Disney– was a sexist and felt that a woman would not be successful as the lead in a superhero movie (Perlmutter was also a racist and was the reason why a Black Panther movie was not made earlier because he felt that black people –like women generally– could not carry a movie). Thank goodness, Perlmutter has since been put out to pasture.
Overall, this was a fun movie that adds more of everything fans liked in the first movie. It’s not too serious and it should not be. It’s just a fun summer movie with lots of laughs and explosions.