Iron Man was always going to be a tough act to follow, and I feel that this film wisely goes down the light-hearted route. Plenty of gags, along with lots of action to keep the kids happy, although Tony Stark himself just doesn't seem to generate the same charisma as in the first film. Sam Rockwell played his 'love to hate' character Justin Hammer expertly, although elsewhere James Rhodes/War Machine being played by a different actor to the first film felt oddly disappointing...