Back from the dead...
So it's on DVD/BluRay.
I bought it on iTunes and I know a lot of people were disappointed but I just loved this movie (my favorite superhero movie so far -- it's not flawless but other than the Avengers, it's way up there).
I also read the novelization of it and it is a good example of where the book does fill in a lot of gaps.
For example, Lois Lane on the the aircraft at the end didn't make sense in the movie but in the book she lies her way onto it to get "the exclusive" by saying that Superman told her how to use the key and that only she could put it in (she lied basically). The military had told her that she had no busisness on a military mission.
The neck breaking thing with Zod was much better handled in the book where there's quite a bit more dialog that makes it clear that Superman is basically screwed. Something to the effect of:
"What are you going to do, Kal? Hold me like this forever? There's no prison on this planet that can hold me! The moment you let me go, I will murder every human being on this miserable world!" (I'm paraphrasing but this is what the book made clear to me the reader)
There was a lot more nuance in the book too regarding why they had no intention to try to live with the humans and why Zod's people were such..well why they were so evil. They outright state that they cannot possibly live with the humans as they have been genetically been altered to not have empathy or morality. They were created to kill things and destroy places.
Krypton's doom was ultimately their rigid focus on genetic determinism which basically became a negative feedback loop.