I was discussing the exact same thing with a mate of mine earlier today.
You cant do good action scenes because how can yuo possibly escape from Superman? He can fly at the speed of light, hes got super strength and all the other super powers he has..i dont know how you can make it entertaining. How can you possibly think hes ever going to lose.
and on the other end of the scale, hes weaker than an old lady when theres kryptonite about...so how do you get good action scenes out of him.
it will be interesting to see how they are going to work around this.
I think the only way you can make the film entertaining is by questioning his morality and constanly giving him choices to make that effect the entire world. Then humans will decided whehter they love or hate their hero.