Supergirl’ Trailer: Milly Alcock Goes Full Anti-Hero in DC’s Cosmic Reboot, Jason Momoa Debuts as Lobo

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Dec 13

Written By Jonathan P. Moustakas

A fierce, raw, intergalactic reintroduction to Kara Zor-El signals a bolder, stranger direction for the new DC Universe.

DC Studios has released the first trailer for Supergirl, and it’s instantly clear James Gunn and Peter Safran are positioning Milly Alcock’s Kara Zor-El as something entirely different from the franchise’s hopeful, sun-lit Superman. The footage debuted online following a private Manhattan preview hosted by Gunn, Safran, director Craig Gillespie, and Alcock — an event engineered to frame Supergirl not as an extension of Superman, but as a standalone force within the new DC Universe.

Set to Blondie’s “Call Me,” the trailer opens on a bleary-eyed Kara in a dark room, blowing out a single birthday candle and mumbling a wish for a better year — a quietly devastating glimpse of a character who’s far from her cousin’s optimistic headspace. She’s bruised, restless, running on fumes, and talking to the only creature she trusts: her super-powered dog Krypto. The film picks up directly after Kara’s cameo in Superman, where she arrives at the Fortress of Solitude to retrieve him.

What follows is a jolt of tonal clarity. Gillespie leans into a grungier, punk-infused sensibility — a cosmic dive bar of intergalactic colonies, sharp-tongued humanoid aliens, and a roughness that recalls Gunn’s early Guardians of the Galaxytextures without mimicking them. Kara wanders through these worlds with a kind of feral exhaustion, less savior and more survivor, hiding the fracture lines beneath her fury.

Speaking at the event, Gillespie didn’t shy away from the darker thesis behind the film. “This is really an anti-hero story,” he said. “She’s got a lot of baggage and a lot of demons coming into this, which is very different from where Superman is in his life.”

Watch The Trailer Below:

The trailer’s biggest surprise arrives in a flash: Jason Momoa as Lobo, a cigar-smoking, leather-clad, motorcycle-riding menace who stomps into frame with the chaotic swagger fans hoped for the moment he was rumored. Gunn revealed Momoa was his first choice from day one — the casting he’s been waiting to announce.

Alcock’s casting itself has an origin story. Gunn recalled to the audience that he suggested her name to Safran before he was even hired to run DC Studios. “You know who’d be great as Supergirl? That little girl from House of the Dragon,” he remembered saying. “She’s really got something special about her.”

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Alcock — visibly stunned after watching the trailer in full — described the moment with the kind of candid electricity that defined her rise. “It’s so weird, in the best way,” she said. “It’s really surreal seeing everyone’s work come together. It’s going to happen. Shit.”

Gunn, meanwhile, leaned into the ethos driving the new DC Universe: imperfection. “So many times female superheroes are so perfect,” he said. “She’s not that at all. She’s very imperfect, like male superheroes have been allowed to be for a while.”

He also lightly acknowledged ongoing speculation about Warner Bros.’ theatrical commitments following the Netflix acquisition. “This is a story-based medium,” Gunn told attendees. “We want stories to be in theaters that are cool and different from each other. This movie is not just a female clone of Superman. It’s its own thing entirely.”

Gillespie (Cruella, I, Tonya) directs from a screenplay by Ana Nogueira, who is also writing DC’s upcoming Wonder Woman reboot. The film adapts Tom King’s acclaimed comic Supergirl: Woman of Tomorrow, a story known for its grit, nihilism, and blistering character work.

Alcock’s supporting cast includes Matthias Schoenaerts as the brutal outlaw Krem of the Yellow Hills; Eve Ridley as Ruthye Marye Knoll, the young girl who drives Kara’s quest for justice; and David Krumholtz and Emily Beecham as her Kryptonian parents. Jason Momoa’s Lobo brings the chaos, while Krypto the Superdog returns as the only source of emotional stability Kara allows herself.

Supergirl soars into theaters June 26, 2025.