First ‘Supergirl’ poster teases a gritty new vision with Milly Alcock in the lead

Warner Bros. Pictures has dropped the first teaser poster for its upcoming Supergirl film, giving fans their first real glimpse of Milly Alcock’s highly anticipated debut as Kara Zor-El. The movie is slated to hit theatres on June 26, 2026.

The teaser art takes a bold, rebellious turn. Set against a gritty urban backdrop, the phrase ‘Look Out’ is spray-painted in graffiti-style over the more classic ‘Look Up tagline, signalling a grittier, more grounded version of the iconic DC heroine. It’s a notable visual shift that hints at the tone director Craig Gillespie (Cruella, I, Tonya) might be aiming for.

Alcock, best known for her breakout role as young Rhaenyra in House of the Dragon, steps into the lead role of Kara in what will be her first full-length appearance as Supergirl in the DC cinematic universe.

The official synopsis adds intrigue, “While celebrating her 21st birthday, Kara Zor-El travels across the galaxy with her dog Krypto, during which she meets the young Ruthye Marye Knoll and goes on a murderous quest for revenge.”

That dark storyline, pulling from Tom King’s Supergirl: Woman of Tomorrow comics, promises a narrative far removed from the hopeful, Earth-based versions fans may expect. The addition of Krypto the Superdog and young Ruthye also teases an intergalactic adventure with emotional stakes.

Supergirl joins the growing list of DC films attempting to reinvent their iconic characters with a modern edge, following the critical retooling of The Batman and Joker franchises.

With Alcock’s rising star power and Gillespie’s flair for edgy storytelling, this version of Supergirl could soar in unexpected, and thrilling, directions.