Iron Man 2 left me a very pleasant taste. Maybe it doesn't have the same amount of action than the first one but it is compensated with better CGI, a better developed plot and a more interesting story. Billionaire Tony Stark must contend with deadly issues involving the government, his own friends, as well as new enemies due to his superhero alter ego Iron Man. As I say before, this sequel isn't full of action like the first one but in my opinion it has enough to leave you satisfied and entertained. It also has good moments of humor specially from Robert Downey Jr. The cast is excellent, and practically the same of the first one with the addition of Scarlett Johansson as Natalie Rushman/Black Widow and Mickey Rourke as Ivan Vankov/Whiplash and the substitution of Terence Howard with Don Cheadle as Rhodey, in fact I think that with Cheadle the movie gains in acting . Downey is again perfect as Tony Stark/Iron Man, it is a role made for him. Gwyneth Paltrow is good enough as Pepper Potts and Samuel L. Jackson is excellent as Nick Fury. In conclusion, Iron Man isn't as exciting as the first one but it has everything to be a total summer blockbuster and pleased the viewer. Oh and one more thing be sure to stay at the end of the final credits to watch a very good surprise.