‘Superman’ Is About ‘Immigrant That Came From Other Places: We’ve ‘Lost’ the Value of ‘Basic Human Kindness’:

In Sunday profile with Times of London, the DC Studios head James Gunn went deep on the themes and ideas that drive his anticipated “Superman.” The superhero epic encompasses “the story of America,” and at a basic level, is about a man searching for a better life away from his original home.
“I mean, ‘Superman’ is the story of America,” Gunn explained. “An immigrant that came from other places and populated the country, but for me it is mostly a story that says basic human kindness is a value and is something we have lost.”
My Pioneering Oscar Book (first published in 1986).
Superman: Film About Politics and Morality
He elaborated: “Yes, it’s about politics. But on another level it’s about morality. Do you never kill no matter what — which is what Superman believes — or do you have some balance, as Lois believes? It’s really about their relationship and the way different opinions on basic moral beliefs can tear two people apart.”
Superman, which releases July 11, stars David Corenswet as the Man of Steel, Rachel Brosnahan as Lois Lane, Nicholas Hoult as Lex Luthor, María Gabriela de Faría as The Engineer, Nathan Fillion as Green Lantern, Skyler Gisondo as Jimmy Olsen and Isabela Merced as Hawkgirl.