Curious about all the Easter eggs hidden throughout James Gunn’s Superman and how they shape the future of the DCU? As Clark Kent balances his dual identity and faces new threats, the film blends legacy callbacks, deep-cut comic references, and character cameos that expand the universe in major ways.
Here’s a breakdown of every Easter egg and DC connection featured in Superman.
List of all major Easter eggs and DC references in Superman (2025)
Superman Robots Inspired by All-Star Superman
Multiple Superman Robots serve as caretakers in Superman’s Fortress of Solitude. The film bases their design and function on All-Star Superman, with one robot later nicknamed “Gary” and voiced by Alan Tudyk.
LuthorCorp Instead of LexCorp
Lex Luthor’s company is named “LuthorCorp,” a deliberate nod to Smallville. The CW show also used this name and starred Michael Rosenbaum as a young Lex Luthor, a longtime friend of James Gunn.
John Williams’ Theme Motif
The film’s score includes motifs from John Williams’ original Superman theme. These musical cues appear in key scenes, mirroring the tone and emotional cues of the 1978 Richard Donner film.
Gotham City Sign
During the evacuation of Metropolis, a highway sign points to Gotham City. This geographic Easter egg in 2025’s Superman reflects the frequent comic-book depiction of Gotham and Metropolis being close to each other.
Jimmy’s Classic Mistake
The Daily Planet’s Editor-in-Chief gets annoyed whenever Jimmy Olsen calls him “Chief.” This dynamic is a direct reference to the classic interactions from comic books and past Superman adaptations.
Big Belly Burger and Jitters
In Metropolis, background signage features Big Belly Burger and Jitters, two fictional chains originating in DC Comics and widely used across Arrowverse shows.
Justice Society of America Mural
A mural inside the Hall of Justice features the original Justice Society of America, signaling their historical existence within the DCU timeline and setting up their potential involvement in future projects. Hence, this Easter egg in Superman serves an important note.
Peacemaker on Superman
John Cena’s Peacemaker appears in a televised interview, mocking Superman. This ties Superman into the broader DCU and continues Gunn’s Peacemaker narrative.
Ultraman’s Identity
Ultraman is revealed to be a clone of Superman created by Lex Luthor. This reimagining mirrors the New 52 version of Bizarro, known as Subject B-0.
Supergirl’s Drunk Debut
Milly Alcock makes her debut as Kara Zor-El when she picks up Krypto. The film shows her drunk after partying on Red Sun worlds, setting up Supergirl: Woman of Tomorrow.
Engineer’s Origin from The Authority
Lex Luthor claims he granted the Engineer her powers by infusing her bloodstream with nanites. This is another Easter egg reference in Superman that matches her comic origin from The Authority. Although the original version did not involve Luthor.
Belle Reve Prison
Authorities sentence Lex Luthor to Belle Reve, the federal penitentiary that Amanda Waller runs. The prison previously appeared in The Suicide Squad and connects Superman to the broader DCU continuity.
