When Seg-El first sees the Fortress of Solitude, a fraction of John Williams' theme from "Superman (1978)" is heard in the score, and again at the end just before the closing credits. See more
Kal-El. My future grandson. This is the story of the House of El. Our ending has yet to be written. But this is how it began. Ours is a story of sacrifice and triumph. How the House of El led a revolution against tyranny. The story of your family isn't how we died. But how we lived.