Superman: 20 Easter Eggs You Probably Missed
13. Mister Mxyzptlk
One of the funnier moments in the movie sees the Justice Gang - comprised of Guy Gardner (Nathan Fillion), Hawkgirl (Isabela Merced), and Mr. Terrific (Edi Gathegi) - battling a creature in the background while Superman is talking to Lois Lane (Rachel Brosnahan) in the foreground.
Superman mentions that the creature in question is a "dimensional imp," which is a sure reference to the Imps from DC comics - magical entities from the Fifth Dimension, a realm existing outside of the space-time continuum.
And this is likely a more pointed reference to by far the most famous of all the Imps - Mister Mxyzptlk, a trickster who has served as a constant thorn in the Man of Steel's side.
And let's be honest, if anyone can make Mister Mxyzptlk work in a future Superman movie, it's James Gunn. Here's hoping.