Milly Alcock’s Supergirl officially has an HBO Max streaming release date.
DC Studios’ Supergirl will begin streaming exclusively on HBO Max on Thursday, September 10, giving fans who missed Kara Zor-El’s latest adventure in theaters a new way to watch the film at home. Supergirl will then make its HBO linear debut Saturday, September 12 at 8:00 p.m. ET.
The HBO Max release answers one of the biggest questions surrounding the film since its theatrical run: when will Supergirl be available on a subscription streaming service?
Supergirl is already available to rent or purchase digitally, but the September 10 release marks its arrival on HBO Max.
When Does Supergirl Come Out On HBO Max?
Supergirl begins streaming on HBO Max on Thursday, September 10, 2026.
The film will be available exclusively on HBO Max for subscription streaming. An American Sign Language version of Supergirl, performed by Catalene Sacchetti and directed by Jonaz McMillan, will also become available on HBO Max September 10.
Supergirl will make its HBO television premiere two days later, Saturday, September 12 at 8:00 p.m. ET.
Who Stars In Supergirl?
Milly Alcock stars as Kara Zor-El, aka Supergirl, Superman’s cousin and an interplanetary nomad whose approach to heroism is distinctly different from Kal-El’s.
The cast also includes Matthias Schoenaerts, Eve Ridley, David Krumholtz and Emily Beecham, with David Corenswet appearing as Superman and Jason Momoa as Lobo.
The film follows Kara after a ruthless adversary strikes close to home, sending her on an interstellar journey alongside an unlikely companion as she struggles with the line between vengeance and justice while trying to save her best friend, Krypto.
If you’re planning to catch the movie when it arrives on HBO Max, read our SUPERGIRL review for our full take on Milly Alcock’s performance and DC Studios’ latest adventure.
Who Directed Supergirl?
Supergirl was directed by Craig Gillespie from a screenplay by Ana Nogueira. DC Studios co-heads Peter Safran and James Gunn produced the film.
The movie is part of the new DC Universe and follows Kara Zor-El as she establishes a very different kind of hero from her famous cousin.
Supergirl begins streaming exclusively on HBO Max Thursday, September 10. The film premieres on HBO Saturday, September 12 at 8:00 p.m. ET.
Supergirl begins subscription streaming on Thursday, September 10, 2026 exclusively on HBO Max.
Supergirl arrives on HBO Max September 10. The film stars Milly Alcock as Kara Zor-El, aka Supergirl.
Yes. Supergirl is already available to rent or purchase digitally. Its September 10 HBO Max debut is the film’s subscription streaming release.
Supergirl makes its HBO linear television debut Saturday, September 12, 2026 at 8:00 p.m. ET.
Thomas Miller is the founder and Editor-in-Chief of Seat42F, covering television, movies and streaming entertainment. He launched Seat42F in 2007 and has spent nearly two decades covering the entertainment industry.
