Supergirl

What Is the 2026 Supergirl Movie About?

Supergirl landed in theaters on June 26, 2026 as the second film in the DC Universe built by James Gunn and Peter Safran, and it hands Kara Zor-El her first solo movie since Helen Slater's Supergirl in 1984. Milly Alcock plays Kara, Craig Gillespie directs, and Ana Nogueira wrote the screenplay. This version of the character is not the polished protector many fans expect. She is not Melissa Benoist's Supergirl, she is not full of hope, like her cousin. She is sharp, weary, and running from the weight of being Superman's cousin.

The story opens with Kara celebrating her 23rd birthday by drinking her way across the galaxy, sticking to planets orbiting red suns where her Kryptonian powers fade and she can feel ordinary for a while. Her dog Krypto travels with her. The plot turns when a 13-year-old girl named Ruthye Marye Knoll walks into a bar looking for a warrior to help her hunt the man who slaughtered her family, a Brigand leader called Krem of the Yellow Hills. Kara wants no part of it at first. Then Krem steals her ship and poisons Krypto on his way out, and because Krem carries the only antidote, Kara commits to the chase. What follows is a shared revenge quest across the stars, with Krypto's life on the clock.

That setup is what separates this Supergirl from a standard origin. There is no learning-to-fly montage and no chosen-one prophecy. Kara is already extraordinary when the film begins, so the pressure sits on her grief and her sense of duty rather than on discovering her powers.

Supergirl: Woman of Tomorrow, the Comic Behind the Movie

The film adapts Supergirl: Woman of Tomorrow, the 2022 DC comic written by Tom King with art by Bilquis Evely. The comic follows the same spine, an alien girl named Ruthye recruiting a hard-drinking Supergirl to track down Krem across the galaxy, and it reads as a western in space more than a traditional cape story.

Gillespie's movie keeps that structure but darkens it. In the comic, Krem murders Ruthye's father alone. In the film, he kills her father Elias, her mother, and her brother in front of her. The comic also framed Krypto's poisoning as a lie Kara tells to keep Ruthye from being consumed by vengeance. The movie makes the poison genuinely lethal, which raises the stakes and gives Kara a personal reason to keep moving. Readers of the comic will recognize the journey while noticing the film pushes harder on loss and violence.

Supergirl 2026 Cast: Milly Alcock, Jason Momoa, and David Corenswet

Milly Alcock, known for House of the Dragon, leads as Kara Zor-El. Matthias Schoenaerts plays the villain Krem of the Yellow Hills, and Eve Ridley plays Ruthye Marye Knoll, the girl whose quest pulls Kara in. David Krumholtz and Emily Beecham appear as Kara's parents, Zor-El and Alura.

The film also stitches itself into the wider DC Universe through two familiar faces. David Corenswet returns as Superman, checking in on his cousin from Earth, and Jason Momoa turns up as the bounty hunter Lobo. Ferdinand Kingsley plays Ruthye's father, Elias. The production shot across England, Scotland, and Iceland, which gives the alien planets a real, weathered look rather than a wall of green screen.

How the Supergirl Movie Differs From the Melissa Benoist TV Series

For a large part of the audience, Supergirl still means the television drama that premiered on CBS on October 26, 2015. Melissa Benoist starred as Kara Danvers, with Chyler Leigh, David Harewood, and Katie McGrath filling out the cast. Ali Adler, Greg Berlanti, and Andrew Kreisberg created the show, which ran for one season on CBS before moving to The CW and joining the Arrowverse for a total of six seasons.

That version centered on Kara Danvers building a life in National City, balancing a reporting job with her identity as Superman's cousin. It leaned bright and hopeful, a hero finding her place while juggling everyday problems. All six seasons stream on Netflix for anyone who wants to revisit that take.

None of that carries into the 2026 film. The movie is a fresh start for Kara Zor-El with no ties to the CBS and CW continuity. Newcomers can walk in cold, and longtime fans of the series should treat this as a separate interpretation rather than a continuation. The tone is the clearest split. The show was warm and grounded. The film is a harder, sadder space western.

Supergirl 2026 Box Office and Rotten Tomatoes Reception

Supergirl opened on June 26, 2026 and reached digital and VOD on July 28, 2026. The response split along a familiar line, with critics landing lower than general audiences. On Rotten Tomatoes the film settled in the high 50s percent range from critics, while the audience score sat near 77 percent. Metacritic came in at 50, labeled mixed, and the CinemaScore was a B-minus. A recurring note across reviews praised Milly Alcock's performance while raising concerns about the script and the action direction.

At the box office the film opened to roughly $38 million domestically against a budget reported near $170 million, a start that trailed well behind the previous DC Universe film, Superman. It became a talking point online, both from fans defending it and from critics calling it a stumble for the new slate. The numbers and the scores tell a clearer story than the noise, a divisive film that connected more with paying audiences than with the critical consensus.

Where Supergirl Fits in James Gunn's DC Universe

Supergirl is the second theatrical release in the DC Universe overseen by James Gunn and Peter Safran, following Superman. Gunn described this Kara as more hardcore than earlier screen versions, a character hardened by watching Krypton die before she reached Earth. The Superman and Lobo appearances confirm the film is part of a connected plan rather than a standalone experiment, and the movie treats Kara as a lead worth building around instead of a supporting player in her cousin's story.

The confusing part about this movie and how Kara fits into the DCU is that she doesn't seem to want to be a superhero. She was away in Superman, she spent most of the time on other planets in this movie, but she still showed up with the Justice Gang. During the recap of Peacemaker season 2, where they change the Justice League to the Justice Gang, Supergirl is seen alongside her cousin, Hawkgirl, Mr. Terrific, and Guy Gardner's Green Lantern. The Kara shown in most of this movie doesn't seem like she would want to be part of that gang, though it could have been a previous attempt at finding a place to fit in for her.