Supergirl Trailer: Milly Alcock’s Epic Cosmic Journey Begins in the DC Universe

DC Studios has unveiled the first full Supergirl trailer, marking a bold new chapter in the DC Universe with Milly Alcock stepping into the role of Kara Zor-El. The trailer opens with Kara celebrating her 23rd birthday, surrounded by echoes of her troubled past, before launching into sweeping action sequences and intergalactic clashes that set the tone for her larger journey.
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The footage positions Supergirl as a hero sharply contrasted with her optimistic cousin, Superman. Kara is shown battling deep internal conflicts, questioning her purpose and grappling with the burden of her traumatic upbringing. These emotional layers blend seamlessly with high-octane action, showcasing cosmic flight, alien worlds, and intense confrontations with powerful enemies.

One of the standout personalities revealed is the anti-hero Lobo, played by Jason Momoa. His presence adds a gritty edge to the story, hinting at volatile alliances and confrontations that take the narrative beyond Earth and into the wider cosmos. Viewers also glimpse other key characters, including Matthias Schoenaerts as a menacing antagonist, Eve Ridley as a determined young companion on Kara’s quest, and David Krumholtz and Emily Beecham as Supergirl’s parents.


Krypto, the beloved super-dog, also makes a playful appearance, offering lighter moments even as the stakes rise. The visuals blend intense set pieces, dramatic skies, alien terrain and classic superhero combat, promising a film rich in spectacle and emotional depth.

Supergirl’s journey in the trailer suggests she will be navigating themes of vengeance, justice and identity. She forms an uneasy bond with Ruthye, a young alien girl who draws her into a vast cosmic mission stretching across planets and cultures. This broader narrative direction gives fans their first substantial look at how the film aims to distinguish her saga from the traditional Superman storyline.


The trailer’s tone balances raw emotion with blockbuster energy, giving viewers strong reason to be excited. Rather than portraying Supergirl as infallible, the footage highlights her resilience as she pushes through personal conflict, reminding audiences that true strength can emerge from imperfection and struggle.

This new film is part of DC Studios’ ongoing efforts to expand the cinematic universe following recent entries. It builds on previous portrayals of Supergirl and teases deeper connections to the House of El’s legacy and the wider cosmic mythology. The trailer’s striking visuals and dynamic character moments have already generated significant buzz online, setting high expectations among superhero fans around the world.

Supergirl is scheduled to hit theaters on June 26, 2026, offering audiences a fresh take on the classic hero with a blend of emotional depth, thrilling action and ambitious world-building.