Look I don't mind Zimmer he did one of my favourite film Scores ever "Broken Arrow"
I think stuff like this for Fortress of Solitude:
1:41 - http://www.youtube.com/watch?v=J0X8oKr6Hso
But please can they keep the main bit of John Williams score? Maybe put a Hanz Zimmer twist on it that would be cool!
But dont create a new one completely from scratch because UNLESS it sounds powerful and Magically Superheroic forget it!
This si Superman, he should own ever other Superhero film on screen!