Now Gunn has revealed on X another look at Alcock’s Supergirl in the first poster for the upcoming “Supergirl” movie from director Craig Gillespie, which opens in theaters June 26, 2026.

Superman director James Gunn has explained his reasoning behind Supergirl's DCU debut in the movie, and also weighs in on that surprise appearance from a fan-favourite former Task Force X

James Gunn, the head of DC Studios and director of "Superman," revealed the first look at the new "Supergirl" movie — with a warning.

Gunn shared the first poster for Supergirl on Twitter, writing, "Look Out. 2026." The artwork shows Milly Alcock’s Kara Zor-El standing in front of a Superman mural, whilst sipping on a beverage of sorts. But it looks like the party girl has defaced her cousin’s 'Look Up' logo by spray painting 'out' over 'up.' Check out the post below.

The Supergirl film, titled Woman of Tomorrow, also stars Matthias Schoenaerts, Eve Ridley, David Krumholtz, and Emily Beecham. Fans reacted excitedly to the poster. One commented, “I loved her cameo at the end.

Hot off the heels of the blockbuster success of Superman, DC Studios is ready to introduce us to another child of Krypton already. After tiny teases throughout its production, we have our first proper look at Milly Alcock’s Supergirl.

Following Superman's box office success, James Gunn offers a new look at Supergirl, preparing audiences for the upcoming 2026 DCU film.

With over $250 million at the global box office in less than week, James Gunn’s “Superman” is widely considered a win for the new DC Universe that Gunn and Peter Safran are spearheading at DC Studios.