James Gunn Shares First Teaser for “Supergirl” Starring Milly Alcock
Diana Golenko
Producer and DC Studios head James Gunn has shared the first snippet of the teaser trailer for the upcoming Supergirl. The clip, part of the marketing campaign for the solo film about Superman’s sister, is set to be fully released later this week.
Teaser trailer this week. #Supergirl pic.twitter.com/R9a44CwIPr
— James Gunn (@JamesGunn) December 7, 2025
The lead role of Kara Zor-El/Supergirl goes to House of the Dragon star Milly Alcock. The film promises to adapt one of the best Supergirl comics: on her 21st birthday, Kara sets off on a journey across the universe with her dog Krypto, becoming embroiled in a long tale of vengeance.
Supergirl is scheduled to premiere on June 26, 2026. In addition to Alcock, Jason Momoa also appears in the film — not as Aquaman this time, but as Lobo, the alien bounty hunter.
Earlier, Milly Alcock admitted she had felt anxious about joining Supergirl, as she doubted her own acting abilities.
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