A film featuring Supergirl entered development as part of the DC Extended Universe (DCEU) franchise in August 2018, and the character was introduced in the 2023 film The Flash, portrayed by Sasha Calle. Plans for the standalone project were altered when Gunn and Safran became co-CEOs of DC Studios in October 2022. A new Supergirl film was announced in January 2023 as an adaptation of the 2021–22 comic book miniseries Supergirl: Woman of Tomorrow by Tom King and Bilquis Evely. Nogueira was hired by November 2023; Alcock was cast in January 2024 to debut in the first DCU film, Superman (2025); and Gillespie joined that May. Filming took place from January to May 2025 at Warner Bros. Studios Leavesden and London in England, and in Scotland. The subtitle was dropped by June 2025.
Kara Zor-El celebrates her 21st birthday by travelling across the galaxy with her dog Krypto. Along the way, she meets the young Ruthye Marye Knoll and encounters a tragedy that leads her on a "murderous quest for revenge".[1][2]
Cast
Milly Alcock as Kara Zor-El / Supergirl: The cousin of Clark Kent / Superman who was raised on a chunk of the destroyed planet Krypton and watched everyone around her die, making her a more jaded person than her cousin who was raised on Earth by loving parents.[3][4][5] Because Kryptonians are healed and gain powers from yellow suns, Supergirl likes to party on planets with red suns where she can get drunk.[2] Producer James Gunn envisioned Supergirl as a "pixie-ish, but very attitudinal character".[6]
Oren Uziel was hired by Warner Bros. Pictures in August 2018 to write a film based on the DC Comics character Supergirl. This came as Warner Bros. and DC Films were looking for new approaches to their DC Extended Universe (DCEU) franchise following several critical and commercial disappointments. Development on the film was in the early stages,[13] but Warner Bros. was already being "very vocal" about wanting to hire a female director.[14] The studio's shift to focusing on a Supergirl film was given as one of the reasons that Henry Cavill was no longer expected to portray Supergirl's cousin Clark Kent / Superman in future DCEU films after portraying the role since Man of Steel (2013);[15] Cavill later indicated that he still wanted to return to the role.[16] Production on Supergirl was tentatively scheduled to begin in early 2020,[17] but was put on hold due to the COVID-19 pandemic.[18]
In February 2021, Sasha Calle was cast as Supergirl for the DCEU film The Flash (2023) and signed a multi-film contract for the DCEU.[19][20]Supergirl was included on DC's slate of films planned for release in 2022 or 2023.[21] In April 2022, Discovery, Inc. and Warner Bros.' parent company WarnerMedia merged to become Warner Bros. Discovery (WBD), led by president and CEO David Zaslav. The new company was expected to restructure DC Entertainment and Zaslav began searching for an equivalent to Marvel Studios president Kevin Feige to lead the new subsidiary.[22] Tatiana Siegel of Rolling Stone reported in August that Supergirl was unlikely to move forward under Zaslav,[23] and it was quietly canceled around that time.[1] Writer/director James Gunn and producer Peter Safran were announced as the co-chairs and co-CEOs of the newly formed DC Studios at the end of October.[24] A week after starting their new roles, the pair had begun working with a group of writers to develop an eight-to-ten-year plan for a new DC Universe (DCU) that would be a "soft reboot" of the DCEU.[25][26][27]
Development
Ana Nogueira worked on a DCEU Supergirl film before she was hired to write the DCU film in November 2023, because producers James Gunn and Peter Safran enjoyed her work.
On January 31, 2023, Gunn and Safran unveiled the first projects from their DCU slate, which begins with Chapter One: Gods and Monsters. One of the films in the slate was an adaptation of the comic book miniseries Supergirl: Woman of Tomorrow (2021–22) by Tom King and Bilquis Evely.[3][28] Gunn described the project as "a big science fiction epic film" and stated it would explore a more "hardcore" version of Kara Zor-El / Supergirl than had been previously seen on screen.[4][28] King was also revealed to be one of the writers working on the overall story for the DCU.[3] Within days of the film's announcement, copies of the Supergirl: Woman of Tomorrow comic book had sold out on Amazon and at many different publishing houses and comic book shops. Gunn said he was working with DC Comics publisher and chief creative officer (CCO) Jim Lee to ensure more copies were printed soon.[29]
While promoting the release of The Flash in June 2023, Calle expressed her love for the Woman of Tomorrow comic book and said she hoped to reprise her role in the film, but this was not guaranteed.[30] She had met with Safran to discuss her future as the character by then,[31] but Gunn eventually decided to move in a different direction with the character.[32] Calle said she was heartbroken and frustrated with the decision because she had filmed a different ending of The Flash that was intended to set up future appearances for her character. She was proud of her work in the role.[19] Following rumors that the DCEU's Aquaman actor, Jason Momoa, would be recast as the character Lobo in the DCU,[33] he was reported in October 2023 to have had discussions with DC Studios about playing that character in the first DCU film, Superman (2025), or a standalone film.[34]
In November 2023, Ana Nogueira was revealed to be writing the screenplay. She was previously attached to write a Supergirl film in 2022 when it was being developed as a spin-off from The Flash. Gunn and Safran enjoyed her work so much that they had her return for their own take, and she signed an overall writing deal with DC.[35] Gunn confirmed Nogueira's involvement and called the film a "beautiful, star-spanning tale".[36] He chose to move forward with it as the second DCU film after Superman, which was not originally planned, based on the strength of Nogueira's script.[37] The film was reported to include the super-powered dog Krypto.[12]
Pre-production
Milly Alcock was first envisioned for the role of Supergirl by producer James Gunn over a year before she was officially cast in January 2024.
By January 2024, Milly Alcock, Emilia Jones, Cailee Spaeny, and Meg Donnelly were being considered to portray Supergirl. Donnelly had voiced the character in the animated films Legion of Super-Heroes (2023) and Justice League: Crisis on Infinite Earths (2024).[32][38] Jones did not read for the role.[39] Alcock and Donnelly performed auditions and screen tests in costume on the Superman set in Atlanta later that month.[1][32] Alcock was officially cast at the end of January. Gunn said she embodied how King, Evely, and Nogueira envisioned the character,[5][40] and he first mentioned Alcock for the role to Safran over a year earlier after seeing her performance in the television series House of the Dragon (2022–present). Gunn believed she had the "edge, grace [and] authenticity" for this interpretation of Supergirl, which he wanted to distance from the more earnest portrayal of the character by Melissa Benoist in the Arrowverse series Supergirl (2015–2021).[41] The studio was hoping to hire a director in the coming weeks,[1] but prioritized casting Supergirl because the character was set to debut in another DCU project, reported to be Superman.[32][38][40]
When Alcock was cast, filming was expected to begin in late 2024.[5][41] Zaslav confirmed in February that the script had been written and further casting was underway.[42] In April, Craig Gillespie entered talks to direct the film and DC Studios EVP Chantal Nong was revealed to be an executive producer.[43] Gillespie was confirmed as director the next month, when the film was given a release date of June 26, 2026.[44] In September, Matthias Schoenaerts joined the cast as the main villain, Krem of the Yellow Hills,[45][8] and filming was expected to begin in January 2025 in the United Kingdom.[45] The next month, Gunn said the film would follow a three-act structure rather than the structure of the Woman of Tomorrow comic book, but it would retain the major characters and themes from the comic. He had reviewed screen tests for the character Ruthye Marye Knoll by then,[46] and Eve Ridley was cast in that role at the end of the month.[7] In December, Momoa was reported to be portraying Lobo in the film. He confirmed the casting by referencing an interview from a year earlier in which he expressed interest in the role.[8] While the character does not appear in the Woman of Tomorrow comic book, King's original pitch for the story was a team-up between Supergirl and Lobo in which they would take on similar roles to the characters Mattie Ross and Rooster Cogburn, respectively, from the novel True Grit (1968).[47] Gunn said Lobo was added to the film to help with adapting it to a three-act structure. He felt Lobo was "the biggest comic book character that's never been in a film".[6] Momoa's role was reported to be a cameo appearance.[9]Anna B. Sheppard was the film's costume designer.[48]
Filming
Principal photography began on January 13, 2025, at Warner Bros. Studios Leavesden and London in England,[49][8] with Rob Hardy as cinematographer.[50] Later that week, David Krumholtz and Emily Beecham joined the cast as Supergirl's parents Zor-El and Alura In-Ze, respectively.[9] Other than the very beginning of filming, Gunn was not present on set and said Gillespie was a great partner who had "just been doing his thing".[51] Gunn and Safran said filming was halfway done at the end of February.[52] Momoa and Krumholtz wrapped their scenes in April.[53][54] Filming was taking place in Scotland by the end of that month,[55] and wrapped by May 10.[56] Filming was also expected to occur in Iceland.[57]
Post-production
In June 2025, Gunn announced that the film's title had been shortened to simply Supergirl.[51]
Marketing
Following Supergirl's introduction in the final scene of Superman,[2] Gunn released the first poster for Supergirl in July 2025. It shows her leaning against the Superman logo with that film's tag line, "Look Up", graffitied to say "Look Out". Commentators highlighted the change in tone from Superman suggested by the poster, as well as Supergirl's coat which is similar to one she wears in the Woman of Tomorrow comic book.[58][59][60] Aaron Perine at /Film wrote that the graffitied tag line was a succinct way to indicate Supergirl's different direction and tone, and said the "whole rebellious angle makes all the sense [in] the world" following her cameo appearance in Superman.[61]
Release
Supergirl is scheduled to be released theatrically by Warner Bros. Pictures in the United States on June 26, 2026. It will be part of the DCU's Chapter One: Gods and Monsters.[3][51][44]
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