Originally Posted by The Boy Scout
The original script to Man of Steel didn’t include Superman killing General Zod to save an innocent family from incineration. In that draft, Zod was sent back into the Phantom Zone and that was that. It was Snyder who pushed for Supes to kill the movie’s big villain, because the hero’s “aversion to killing [was] unexplained.”
In the original version of the script he just got zapped into the Phantom Zone. David [Goyer] and I had long talks about it, and Chris [Nolan] and I talked long about it, and I really feel like we should kill Zod, and I really feel like Superman should kill him. The why of it was for me - I go - if it's truly an origin story, his aversion to killing is unexplained, it's just in his DNA. I felt like we needed him to do something just like him putting on the glasses or going to the Daily Planet, or any of the other things that your sort of seeing for the first time that you realize becomes his sort of his thing. (http://movies.cosmicbooknews.com/content/man-steel-ending-superman-kills-zod#eDqK1B3rFt64ZqvX.99)
If there were more adventures for our Superman to go on, you’re given this thing where, you don’t know 100 percent what he’s going to do. When you put in stone the concept that he won’t kill, and it’s totally in stone, it really erases an option in the viewer’s mind…you’ll always have in the back of your mind, ‘How far can you push him?’ If he sees Lois get hurt, or his mother get killed, you just made a really mad Superman that we know is capable of some really horrible stuff, if he wants to be. That’s the thing that’s cool about him, in some ways. The idea that he has the frailties of a human emotionally. But you don’t want to get that guy mad. (http://insidemovies.ew.com/2013/06/1...-steel-ending/
Still can't believe he said that.
I knew about the original ending, and I agree that it was anticlimactic. That's why I put the update in earlier to better explain what I was discussing.
The thing is, Superman is capable of doing some terrible stuff physically. I believe that's the point of what you have in bold. It's not about making him into a bad person. If that's the impression that you got from watching the movie, then I don't know what to tell you. It's not a common opinion.