Supergirl Streaming Premiere: DC Studios Film Set for HBO Max Debut on September 10
The Supergirl Streaming Premiere is set to bring DC Studios’ latest superhero film to audiences at home this week. Starring Milly Alcock as Kara Zor-El and Jason Momoa as Lobo, Supergirl will begin streaming exclusively on HBO Max on Thursday, September 10, 2026.
The streaming arrival comes less than three months after the film reached theaters on June 26. The movie is directed by Craig Gillespie and written by Ana Nogueira, with the story inspired by the DC Comics series Supergirl: Woman of Tomorrow.
Supergirl Streaming Premiere Date Confirmed
DC Studios has confirmed that Supergirl will make its global streaming debut exclusively on HBO Max on September 10. The film will also receive a linear HBO premiere on Saturday, September 12, at 8 p.m. ET.
The streaming release gives fans who missed the theatrical run an opportunity to watch Milly Alcock’s first solo outing as Kara Zor-El from home.
An American Sign Language version of the film will also be available exclusively on HBO Max on the same day.
Milly Alcock Leads the New DC Universe Adventure
Milly Alcock plays Kara Zor-El, Superman’s cousin and the central character of the film. Alcock previously appeared as the character during Superman, establishing her place in the new DC Universe.
Supergirl presents Kara as a more experienced and unpredictable hero. Rather than portraying her simply as a younger version of Superman, the movie explores a character who has spent years traveling across the galaxy and dealing with her own complicated relationship with heroism.
The cast also includes Matthias Schoenaerts, Eve Ridley, David Krumholtz, Emily Beecham and David Corenswet, who returns as Superman.
Jason Momoa Appears as Lobo
One of the biggest attractions surrounding the movie is Jason Momoa’s role as Lobo.
Momoa plays the bounty hunter who becomes involved with Kara during her interstellar journey. His appearance also gives the film an additional connection to the expanding DC Universe.
The pairing of Alcock’s Supergirl and Momoa’s Lobo has generated significant interest among DC fans, particularly because both characters bring very different personalities and approaches to the story.
What Is Supergirl About?
The film follows Kara Zor-El as she travels through space and becomes involved in a mission driven by both revenge and justice.
According to the film’s official storyline, an unexpected and ruthless adversary strikes close to Kara, forcing her to join an unlikely companion. The two then embark on an interstellar journey while attempting to save the life of Kara’s best friend, her dog Krypto.
The movie is based on Tom King’s Supergirl: Woman of Tomorrow comic series, although the film adapts the material for the new DC Universe created under DC Studios heads James Gunn and Peter Safran.
Supergirl Moves Quickly From Theaters to Streaming
The Supergirl Streaming Premiere comes roughly two and a half months after the movie’s theatrical release.
Supergirl opened in theaters on June 26, 2026, but its theatrical performance fell short of expectations. The movie ultimately earned around $126 million worldwide, according to industry reports.
Its relatively quick transition to streaming makes the HBO Max release particularly important for Warner Bros. Discovery and DC Studios. Streaming could give the film an opportunity to reach a much larger audience beyond its theatrical run.
Why the HBO Max Release Matters for DC
Supergirl is the second movie in the new DC Universe’s first chapter, following Superman.
The HBO Max release therefore gives viewers another opportunity to explore the direction DC Studios is taking with its interconnected movie universe.
For fans following the new DCU, Supergirl introduces another major character while expanding the universe beyond Superman and the more traditional Earth-based superhero stories.
The film’s arrival also comes as HBO Max continues adding major Warner Bros. releases to its streaming lineup.
When and Where to Watch Supergirl
The Supergirl Streaming Premiere is scheduled for Thursday, September 10, 2026.
Viewers will be able to watch the film exclusively on HBO Max. The linear HBO premiere will follow on September 12 at 8 p.m. ET.
For audiences in different international markets, availability and timing may vary depending on local HBO Max schedules and distribution arrangements.
Key Takeaway
The Supergirl Streaming Premiere will officially take place on HBO Max on September 10, bringing Milly Alcock’s Kara Zor-El and Jason Momoa’s Lobo to streaming audiences worldwide.
The film represents another major step in DC Studios’ new cinematic universe and gives fans who missed the theatrical release a chance to experience the latest DC superhero adventure from home.
FAQs
1. When is the Supergirl Streaming Premiere?
Supergirl will begin streaming exclusively on HBO Max on September 10, 2026.
2. Who plays Supergirl?
Milly Alcock plays Kara Zor-El, also known as Supergirl.
3. Who does Jason Momoa play in Supergirl?
Jason Momoa plays Lobo, a bounty hunter who becomes involved in Kara’s interstellar adventure.
4. Is Supergirl available on HBO Max?
Yes. The film will stream exclusively on HBO Max beginning September 10, 2026.
5. When did Supergirl release in theaters?
Supergirl was released theatrically on June 26, 2026.
6. Who directed Supergirl?
Craig Gillespie directed Supergirl from a screenplay written by Ana Nogueira.
7. Is Supergirl part of the new DC Universe?
Yes. Supergirl is part of the new DC Universe developed under DC Studios.
8. Does David Corenswet appear in Supergirl?
Yes. David Corenswet appears as Superman alongside Milly Alcock and Jason Momoa.
9. What is Supergirl about?
The movie follows Kara Zor-El on an interstellar journey involving revenge, justice and an effort to save her dog Krypto.
10. When will Supergirl premiere on HBO television?
Supergirl will have its HBO linear premiere on September 12, 2026, at 8 p.m. ET.
