James Gunn has a very specific hobby. It is not gardening. It is not woodworking. It is logging onto Threads at odd hours to tell strangers on the internet that their theory about his movie is, and I’m paraphrasing only slightly, extremely wrong.
He did it again on September 15, 2026. Fans, fresh off Lanterns and vibrating with the certainty that a battalion of secret heroes was hiding inside his next film, asked him to confirm the cameo list.
Gunn’s response, reported by GamesRadar+, was essentially a shrug with a chokehold attached: what secret characters? He said it’s a movie about Lex and Clark, told people not to expect substantial amounts of anyone else, clarified that he meant both new faces and screen time for non-core characters, and then noted that most of what’s circulating online is flatly incorrect.
So that’s the freshest Man Of Tomorrow (2027) Update: the director of the biggest DC movie on the calendar spent his morning deflating the internet like a bouncy castle at the end of a birthday party.
Let’s go through everything else — the confirmed, the strongly implied, and the gloriously unhinged.
The Man Of Tomorrow (2027) Update That Started The Whole Circus
Rewind to September 3, 2025. Gunn posted a Jim Lee illustration to Instagram and X: Lex Luthor in a green-and-purple mech suit, Superman leaning casually against him holding a screwdriver like a bored dad at a furniture store. Title: Man of Tomorrow. Date: July 9, 2027.
The Hollywood Reporter was first out of the gate, noting that Luthor’s warsuit has existed in comics and animation for decades but had never once made it to live action. Variety, Deadline, and ABC News followed within hours. Gunn’s tweet cleared 27 million views. Somewhere, a Warner Bros. marketing executive wept softly into a spreadsheet.
One detail that still trips people up: the official title is Man of Tomorrow. Not Superman: Man of Tomorrow. Nerdist has had to say this roughly nine hundred times. Half the press still adds the prefix anyway, because branding is a suggestion and chaos is a lifestyle.
The Plot: Two Guys Who Hate Each Other, One Very Large Problem
Gunn cracked the story open on The Howard Stern Show a week after the announcement. As Deadline transcribed it, the film is about Lex Luthor and Superman being forced to cooperate against a far bigger threat — and Gunn stressed it’s as much a Lex movie as it is a Superman movie.
He doubled down later with Variety, saying that at its core the film is about Clark and Lex, and adding that he personally relates to both: Lex’s ambition and obsession (minus the murder, he clarified, which is the sort of caveat you appreciate from a man with a $200 million budget), and Superman’s Midwestern faith in people.
Cinemablend read this as a tonal shift away from the sunny four-colour spectacle of 2025’s Superman. Collider framed it as Superman’s #1 hater being promoted to co-lead. Esquire India noted Gunn wants to get into Luthor’s heart, which for Lex is presumably a small titanium box with a passcode.
Leaked set footage suggests the alliance is not a warm one. One video showed Superman thoroughly losing his temper with Lex. Another showed Lex taking a Kryptonian beating. Buddy-cop, but the buddy part is doing heavy lifting.
Also Read: Man Of Tomorrow (2027): Is Adria Arjona Secretly Wonder Woman? Josh Horowitz Just Bet $500 On It
The Villain: Brainiac, Finally, In Live Action
Lars Eidinger — of Babylon Berlin and Clouds of Sils Maria — was cast as Brainiac following a global search. This is the first live-action Brainiac in a Superman film, which is genuinely remarkable given the character debuted in 1958 and Hollywood has since found time for three separate Fantastic Four attempts.
Fans called it early, by the way. Gunn posted a photo of the script cover. The script cover had a cross-section of a human brain on it. Detective work was not required.
In December 2025, Gunn outlined his influences — the 1950s Otto Binder material, Marv Wolfman’s scarier take, the animated versions, and the current Absolute Brainiac, per GamesRadar+. He also cheerfully agreed with a fan who described Absolute Brainiac as nightmare fuel. Take that as your content warning.
Lex’s Warsuit Is Real, Practical, And Made Of Something Called Lexiglas
On June 1, 2026, mid-shoot, Gunn posted a “fit check” from set: the first look at Nicholas Hoult in the Power Armor. Every DC outlet on Earth ran it within the hour. Nerdist reacted with the professional detachment of “damn, it looks good.”
Per Esquire India, the suit was built as a practical costume rather than a CGI overlay, and it incorporates a material Gunn has called Lexiglas. Yes. He named the transparent material after himself. Lex Luthor would absolutely do this, which is either great character work or a pun that escaped containment. Possibly both.
The Man Of Tomorrow (2027) Update On Casting: A Stacked, Slightly Absurd Roll Call
Most of the Superman ensemble is back: David Corenswet, Rachel Brosnahan, Nicholas Hoult, Skyler Gisondo, Sara Sampaio, Isabela Merced, Nathan Fillion, Edi Gathegi, María Gabriela de Faría, Frank Grillo as Rick Flag Sr., and Neva Howell as Martha Kent.
New or crossing over: Lars Eidinger (Brainiac), Milly Alcock (Supergirl), Aaron Pierre (John Stewart, bridging over from Lanterns), Xolo Maridueña (Blue Beetle), Adria Arjona (classified), plus Matthew Lillard, Andre Royo, Sinqua Walls, and Stephen Blackehart.
Alcock’s role is not a cameo. Gunn told ExtraTV, via GamesRadar+, that Kara being fundamentally unlike her cousin puts them at odds, and that this friction is an even bigger deal here than it was in her own movie. Milly’s got a big role in that one, he said.
Which does sit slightly awkwardly beside today’s “don’t expect substantial amounts of other characters.” Both can be true. Gunn’s definition of “core” is apparently a gated community with a very selective HOA.
The Adria Arjona Situation Is The Best Running Joke In Hollywood
Here is the most entertaining strand of any Man Of Tomorrow (2027) Update.
In April 2026, after a competitive audition process in Atlanta that also involved Grace Van Patten, Sydney Chandler, and Eva De Dominici, Arjona landed a key role. Deadline, Variety, and Empire reported it as Maxima, the alien queen of Almerac. The Hollywood Reporter hedged, noting it was unclear whether Maxima was actually correct.
That hedge detonated. Fans have wanted Arjona as Wonder Woman since mid-2025, and Gunn himself has publicly praised the fan-casting. TechRadar laid out the misdirect theory in detail.
Then Arjona went and made it worse. Speaking to Screen Rant — flagged by Dark Horizons — she said she couldn’t clarify who she was playing, and then described her prep: I have muscles that I’ve never had in my life. Two to three hours of training daily, a strict diet, coffee as a structural support beam. Women’s Health published boxing footage.
The fandom’s response was immediate and unanimous: nobody does that for Maxima. It may well be exactly what you do for Maxima. But the vibes have spoken, and the vibes are wearing a tiara.
The Peacemaker Thread: Salvation, ARGUS, And A Man In A Lake
Peacemaker season 2 ended with Rick Flag Sr. banishing Chris Smith to Salvation — an extradimensional world being converted into a metahuman prison, lifted from the Salvation Run comics. Gunn told Rolling Stone this isn’t background texture; the escalating war between the government and metahumans is load-bearing for the DCU going forward. He’s separately explained that Salvation sits in another universe entirely — you can’t simply fly there.
So when principal photography wrapped in late August 2026 and Gunn posted a photo of Nicholas Hoult swimming in a lake, fans did the only rational thing and concluded that Lex Luthor gets exiled to Salvation. ComicBookMovie ran the theory. Popverse heroically debunked it by examining the trees, pointing out that the wrap photo shows conifers while Salvation appeared to be deciduous.
Genuine forensic botany, deployed against a picture of a wet actor. Never change, internet.
The A.V. Club covered the wrap with its usual reverence, observing that Gunn now has the better part of a year to argue with his brain trust about tonal minutiae. The shoot ran 93 days — exactly one more than Superman.
The Rumour Mill: Read With Extreme Caution
On September 12, 2026, Dark Horizons relayed a scooper report (originating with Mundos da DC, via Max Blizz) claiming Gunn absorbed criticism of the 2025 film and is answering it directly.
The claims include: a tone described as considerably more mature, dense, and epic, closer to Guardians of the Galaxy Vol. 3; a new director of photography; positioning as the first true DCU event movie; a deliberately unsettling Brainiac design; a substantial John Stewart role; a shirtless Lex prison brawl; Captain Atom receiving a medal; Clark helping a wheelchair-bound Jonathan Kent; and Arjona as Wonder Woman.
Dark Horizons labelled it pure rumour. Gunn hasn’t responded. And today’s “most stuff is just dead wrong” arrived three days later, which may be coincidence, or may be the world’s most passive-aggressive subtweet.
When Does The Trailer Drop?
No official footage exists yet. Gunn shut down a rumour that he screened a trailer at CineEurope in mid-2026 — it was behind-the-scenes material, not a teaser.
ComicBookMovie, citing leaker @Cryptic4KQual, expects a December 2026 teaser, mirroring Superman‘s December 2024 debut. MovieWeb reaches the same conclusion. December is shaping up to be a trailer bloodbath, with Star Wars: Starfighter and Spider-Man: Beyond the Spider-Verse also in the mix, and Avengers: Doomsday looming.
Why The Stakes Are Frankly Enormous
Superman pulled north of $611 million worldwide in 2025 and became the year’s highest-grossing superhero film. Supergirl, in June 2026, did not repeat the trick — it’s widely regarded as a stumble, though Nerdist liked it and will die on that hill.
Asked whether DC would revise strategy afterward, David Zaslav told Deadline no — Gunn is locked in on this film, working 16 to 18 hour days, including on his own birthday. The footage, per Zaslav, looks fantastic.
CEOs say that about everything. But he did volunteer the birthday detail, which is either touching or a mild HR concern.
The Scorecard
| Claim | Status |
|---|---|
| Releases July 9, 2027 | Confirmed |
| Title is Man of Tomorrow, no prefix | Confirmed |
| Superman and Lex forced to team up | Confirmed by Gunn |
| Brainiac is the threat (Lars Eidinger) | Confirmed |
| Lex’s practical warsuit | Confirmed, photo released |
| Set roughly two years after Superman | Confirmed by Gunn |
| Supergirl has a major role | Confirmed by Gunn |
| Wrapped after 93 days | Confirmed |
| Arjona as Wonder Woman | Unconfirmed, wildly assumed |
| Lex exiled to Salvation | Fan theory (and the trees disagree) |
| Captain Atom, Jonathan Kent scene, DP change | Unverified scooper rumour |
| Teaser in December 2026 | Credible speculation |
Final Man Of Tomorrow (2027) Update
The film is shot. Post-production runs nearly a full year. Gunn is simultaneously running the studio and swatting down theories with the energy of a man defending a picnic from wasps.
What we actually know is small and good: two enemies, one catastrophic problem, a genuinely frightening Brainiac, a warsuit made of a material named after its wearer, and a Supergirl who does not like her cousin very much. What we don’t know is everything else, and the gap is being enthusiastically filled by strangers analysing foliage.
July 9, 2027. Bring snacks. Leave the tree-identification app at home.
Sources referenced: The Hollywood Reporter, Variety, Deadline, GamesRadar+, Nerdist, Dark Horizons, ComicBookMovie, Popverse, The A.V. Club, MovieWeb, Collider, ScreenRant, Cinemablend, TechRadar, Empire, The Playlist, Esquire India, Tom’s Guide, ABC News, SciFiNow.
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