James Gunn recently shared why Supergirl didn’t tell the truth about Kal-El’s parents’ message to him in Superman. Released in theaters across the globe on July 11, 2025, the film featured a cameo appearance from Milly Alcock as Kara,

James Gunn is reshaping the DC Universe with a bold, emotionally charged vision, and nowhere is that clearer than in the introduction of Supergirl. Played by ‘House of the Dragon’ star Milly Alcock, Kara Zor-El made her cinematic debut in the new ‘Superman’ film.

James Gunn teased Milly Alcock's 'Supergirl' film, telling fans to "Look Out" for the film, slated for a June 26, 2026 release. The cast includes Matthias Schoenaerts, Eve Ridley, David Krumholtz, Emily Beecham and Jason Momoa.