The patriotic, liberal values that superhero movies embody no longer seem to resonate with a divided American public.

A right-wing culture war erupted when director James Gunn described the Man of Steel as an “immigrant.” But in the battle of the box office, Superman is a clear winner.

The White House has responded after drawing ire and backlash over its recent memes, one of which included a fake movie poster depicting President Donald Trump as Superman. In a post shared across its ...