Milly Alcock is being celebrated as the breakout force of James Gunn's Supergirl, with first reactions drawing bold Mad Max comparisons. The film marks the second chapter in Gunn's DC Universe, following last year's Superman and its hefty box office haul. With a theatrical release locked for June 26, the wasteland energy has everyone rethinking what a Supergirl movie was even supposed to look like.

While the comparisons sound dramatic, one performance is being singled out above everything else, turning a simple premise into a genuine standout moment for Alcock.

Milly Alcock emerges as the undeniable standout of Supergirl, according to critics who watched early footage. Simon Thompson, a journalist with bylines at The Hollywood Reporter, Gold Derby, and the LA Times, praised her performance directly, calling the film fun even as it embraces a much darker visual register. The movie pulls heavily from Mad Max, favoring dirty worlds, chaotic violence, and a hero who is far from polished. Jason Momoa's Lobo adds further chaos, but Alcock remains the central force critics keep returning to.

"Milly Alcock is great as the titular heroine and Momoa’s Lobo is a blast," said journalist Simon Thompson on X.

He then added, "Other big wins are the action, humor and when it leans into physical production."

The story follows Kara Zor-El as she reluctantly partners with a young companion seeking justice after her father's m*****. Their target is Krem of the Yellow Hills, the ruthless leader of a band of space pirates terrorizing distant worlds. The journey unfolds across hostile planets, blending vengeance with self-discovery as Kara confronts memories of Krypton's destruction. Krypto the Superdog tags along, while Lobo's unpredictable presence injects unexpected humor into otherwise heavy stakes.

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While Kara fights for vengeance across the galaxy, a familiar face from Earth makes the journey personal.

David Corenswet reprises his role as Superman, confirming his appearance alongside Alcock in a supporting capacity. Their dynamic highlights a sharp contrast between Kara's hardened worldview and Clark's more hopeful outlook on humanity. Matthias Schoenaerts plays the villain Krem, while Eve Ridley portrays Ruthye, the companion driving the revenge plot forward. David Krumholtz and Emily Beecham round out the cast as Kara's parents, Zor-El and Alura, grounding her backstory on Argo City.

Kara grew up on Argo City, a surviving fragment of Krypton orbiting a red sun that left her powerless until her teenage years. That upbringing shaped a grittier, more world-weary hero than audiences saw in Superman, and it explains much of the tonal shift critics are noticing. Trauma, loss, and survival sit at the center of her journey, making the Mad Max comparisons feel earned rather than gimmicky. Milly Alcock's standout turn, paired with this darker backstory, is exactly why Supergirl is generating buzz.

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What are your thoughts on Milly Alcock's standout turn in Supergirl? Let us know in the comments.