James Gunn’s new DCU is getting ready to launch in cinemas all over the globe next year with the release of Superman. But just one year later, Kal-El’s cousin Kara, a.k.a Supergirl, is hitting the big screen as well, in the character’s first feature film in over 40 years.

This film will star House of the Dragon‘s Milly Alcock as the titular Supergirl and now, according to Deadline, Eve Ridley will also star in the film as Ruthye Mary Knolle. This character is central to the comics that the film is based on, in which this alien girl discovers the death of her father by a villain named Krem. Her quest for vengeance leads to a team up with Kara for justice.

SUPERGIRL: WOMAN OF TOMORROW Casts Eve Ridley as Ruthye Mary Knolle_1
DC Comics/Ed Miller/Netflix

Here’s everything we know so far about DC Studios’ upcoming movie about the Girl of Steel, Supergirl: Woman of Tomorrow.

Title

DC Comics

Like the comic book upon which it is based, the title of the film is Supergirl: Woman of Tomorrow. It will be the second film in James Gunn’s Chapter 1 of his new DCU, titled “Gods and Monsters.”

Supergirl: Woman of Tomorrow’s Plot

DC Comics

Based on the 2021-2022 series of the same name by Batman writer Tom King and artist Bilquis Evely, the film will be a grand intergalactic adventure. In this story, Kara Zor-El, Superman’s young cousin, will embark on a journey through space on her 21st birthday. Joining her on this adventure is Krypto the Superdog. In space she meets a young alien girl named Ruthye who asks Kara for her help in getting revenge for the killing of her family by a man known as Krem of the Yellow Hills. Kara is far more jaded than her cousin Kal-El, who came to Earth as a baby. In stark contrast, this version of Kara witnessed the destruction of her home planet at age 14, changing her outlook on life going forward.

Behind-The-Scenes

Supergirl: Woman of Tomorrow is directed by I, Tonya and Cruella director Craig Gillespie, from a script by Ana Nogueira. Although she has written screenplays before, most know Nogueira from her role in the CW series The Vampire Diaries. DC Studios co-heads James Gunn and Peter Safran are producing. Of Nogueira, Gunn said “Ana is an amazing writer whose screenplay adaptation of Woman of Tomorrow is above and beyond anything I hoped it would be.”

DC Comics

He later said (via The Hollywood Reporter) “[Writer] Anna [Nogueira] came in, and she pitched the story to me of Supergirl, and it was just one of the best pitches I’ve ever heard, and she immediately wrote it. She came in with the first draft that was great, and it’s just gotten better and better. Then [director] Craig [Gillespie] has been incredibly easy to work with, and I can’t wait for that to come out.”

Supergirl: Woman of Tomorrow’s Cast

HBO/DC Studios

Our titular woman of tomorrow is none other than House of the Dragon star Milly Alcock. As fans probably know, she played the younger Princess Rhaenyra Targaryen in the first season of that series. Joining her is Belgian actor Matthias Schoenaerts, famous for his role in Netflix’s The Old Guard. Here, he’s the antagonist of the film, Krem of the Yellow Hills. Although not confirmed, we imagine there will be some kind of smaller role for David Corenswet as Kara’s cousin Superman.

Supergirl: Woman of Tomorrow Release Date

Supergirl: Woman of Tomorrow is set to release in theaters worldwide on June 26, 2026.