We haven’t heard much about Warner Bros.’ forthcoming Supergirl, starring Milly Alcock in the title role, since the first teaser dropped back in December. But with its summer release approaching, the studio just released the first official full trailer, and it’s definitely a crowd-pleaser.
As previously reported, we met Alcock’s Supergirl briefly at the end of Superman, when she showed up to collect her dog Krypto, still a bit hungover from partying on a red-sun planet. She is more jaded than her cousin, having witnessed the destruction of Krypton and the loss of everything and everyone she loved. “He sees the good in everyone, and I see the truth,” she says in the teaser.
Kara, aka Supergirl, is turning 23 and declares it will be the best year yet, which is admittedly “not a very high bar to clear.” While she might not be too keen on the prospect, she’s going to be a superhero nonetheless. Per the logline: “When an unexpected and ruthless adversary strikes too close to home, Kara Zor-El, aka Supergirl, reluctantly joins forces with an unlikely companion on an epic, interstellar journey of vengeance and justice.”
In addition to Alcock, the cast includes Matthias Schoenaerts as chief villain Krem of the Yellow Hills; Eve Ridley as Ruthye Marye Knoll, the aforementioned “unlikely companion” who meets and bonds with Supergirl over the course of the film; Ferdinand Kingsley as Ruthye’s father, Elias; and David Krumholtz and Emily Beecham as Supergirl’s parents, Zor-El and Alura In-Ze. Jason Momoa also makes an appearance as Lobo, an alien bounty hunter from the planet Czarnia. We catch a brief, blurry glimpse of Momoa’s well-muscled mercenary with the glowing red eyes in the teaser. And of course, our favorite misbehaving pupster, Krypto, is returning, too; he kicks off the teaser by peeing on a newspaper.
The new trailer opens with Clark/Superman (David Corenswet) leaving a message for his wayward cousin about when she might return to Earth: “I’m worried you’re not going to find your people.” But Kara has no people; what she does have is Krypto, who we see as an adorable young pup. “Home is wherever you are, buddy,” Kara tells him. But then Krypto gets shot with some kind of poison or virus, and Kara must get the antidote in three days or poor Krypto won’t survive. (Prediction: there will be a massive fan outcry if he doesn’t.)
Enter Krem of the Yellow Hills and a flashback to his slaughter of Ruthye’s family. This is followed by a refreshing brawl in a dive bar and our introduction to wise-cracking anti-hero Lobo; Momoa is clearly having a blast chewing up the scenery in the role. It’s all leading to a showdown with Krem, who relishes both Ruthye’s and Kara’s pain. “Revenge won’t take your pain away,” Kara tells Ruthye, but that doesn’t mean she can’t take on Krem’s forces and kick some intergalactic butt.
Supergirl hits theaters on June 26, 2026.







