According to David S. Goyer
, the story's major theme is first contact: "We approached Superman as if it weren't a comic book movie, as if it were real. He's an alien. If the world found out he existed, it would be the biggest thing that ever happened in human history. Just his existence would change the face of the Earth forever." See more
Will you not understand? Krypton's core is collapsing! We may only have a matter of weeks! I warned you, harvesting the core was suicide! It has accelerated the process of implosion!
Our energy reserves were exhausted. What would you have us do, El?
Look to the stars, like our ancestors did! There are habitable worlds within reach. We can begin by using the old outposts.
Are you seriously suggesting that we evacuate the entire planet?
No, everybody here is already dead. Give me ...