
Speaking at the BAFTA and BFI Screenwriters' Lecture, the writer of
Man of Steel and
Man of Steel 2 aka
Batman vs. Superman,
David S. Goyer talked about why Superman can kill, saying that controversial actions at the end of
Man of Steel will likely come into play in the film's sequel.
Possible spoilers follow, so beware!
Goyer said why he had no problem turning Superman into a killer:
We were pretty sure that was going to be controversial. It's not like we were deluding ourselves, and we weren't just doing it to be cool. We felt, in the case of Zod, we wanted to put the character in an impossible situation and make an impossible choice.
He explained:
This is one area, and I've written comic books as well and this is where I disagree with some of my fellow comic book writers – ‘Superman doesn't kill'. It's a rule that exists outside of the narrative and I just don't believe in rules like that. I believe when you're writing film or television, you can't rely on a crutch or rule that exists outside of the narrative of the film.
Furthermore, they didn't want to give Superman an easy out:
So the situation was, Zod says ‘I'm not going to stop until you kill me or I kill you.' The reality is no prison on the planet could hold him and in our film Superman can't fly to the moon, and we didn't want to come up with that crutch.
Goyer looks forward to explore the side effects of that decision in further films, like 2015s
Batman vs. Superman which features
Ben Affleck as Batman opposite
Henry Cavill‘s Kal-El :
Also our movie was in a way Superman Begins, he's not really Superman until the end of the film. We wanted him to have had that experience of having taken a life and carry that through onto the next films. Because he's Superman and because people idolise him he will have to hold himself to a higher standard.
In a separate piece Goyer was asked if he would end up writing
Justice League, and he responded simply, ‘Might be, can't say.' Lucky him! Meanwhile,
Man of Steel is flying onto Blu-ray and DVD on November 12th, 2013.
And what do you think dear reader?

Not to mention the fact that he killed Zod in Superman 2, by tricking him into forfeiting his super powers, crushing his hand and hurling into a pit AND in the original comics…