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The official Supergirl teaser trailer was published on December 11, 2025, by Warner Bros. ME. Watch the official teaser on YouTube. DC’s recap said the trailer was out the following day, December 12. The official pages confirming those dates do not establish that James Gunn personally announced the teaser’s release date.
Supergirl teaser trailer release date
Warner Bros. ME’s official YouTube upload lists December 11, 2025, as the teaser’s publication date. DC followed with a recap on December 12, 2025, saying the first trailer was out and linking to the video.
Although the original headline attributes confirmation to James Gunn, DC’s official film page identifies him as a producer, not as the person who announced the teaser date. The official trailer and recap establish when it appeared, but do not document a personal confirmation by Gunn.
Trailer date versus the movie’s theatrical release
The teaser’s online publication date is separate from the film’s theatrical schedule. DC’s film page listed these release dates:
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| Release | Date | Territory or detail |
|---|---|---|
| Official teaser trailer | December 11, 2025 | Published by Warner Bros. ME on YouTube |
| Supergirl theatrical release | June 24, 2026 | Internationally |
| Supergirl theatrical release | June 26, 2026 | North America |
The theatrical dates above are the dates listed on DC’s official film page; they are not trailer dates.
What the film is about
DC describes Kara Zor-El as setting out on an interstellar journey with an unlikely companion after a ruthless adversary strikes close to home. Milly Alcock stars as Supergirl/Kara Zor-El. Craig Gillespie directs from a screenplay by Ana Nogueira; the cast listed by DC also includes Matthias Schoenaerts, Eve Ridley, David Krumholtz, Emily Beecham, David Corenswet, and Jason Momoa.
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DC identifies Supergirl: Woman of Tomorrow, written by Tom King and illustrated by Bilquis Evely, as the comic on which the film is based. It is an optional starting point for readers curious about the source material, though an adaptation need not retell the comic exactly.
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Sources and official updates
- Warner Bros. ME’s official teaser upload
- DC’s December 12, 2025 teaser recap
- DC’s official Supergirl film page
- DC’s Supergirl hub
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