Key Takeaways
- Supergirl’s costume has changed significantly since her Superman cameo, embracing a more comic-accurate design.
- The new suit draws heavily from Woman of Tomorrow, hinting at the visual and narrative direction of the 2026 solo film.
- Early adoption of suit upgrades in the DCU signals a commitment to character development and authenticity under James Gunn’s leadership.
The DC Universe is already undergoing its first visual evolution, and it’s happening through its newest Kryptonian. Following her cameo appearance in Superman (2025), Milly Alcock’s Supergirl returns with a striking new costume in the first official poster for her solo movie, Supergirl (2026)—and fans are taking notice.
Supergirl’s Costume in Superman vs. Supergirl (2026)
Eagle-eyed fans quickly pointed out key differences between Kara Zor-El’s costume in Superman and the one revealed in the Supergirl movie poster. Alcock’s brief appearance in Superman saw her don a darker-toned suit featuring a simplistic belt, minimal skirt detailing, and standard red boots.
However, the new Supergirl promotional material—shared by James Gunn and circulated by @DiscussingFilm—shows a completely refreshed outfit. The most notable upgrades include a fully golden belt, a redesigned skirt with textured fabric, and boots adorned with golden hems. These updates make the new look far more comic-accurate, especially when compared to Supergirl: Woman of Tomorrow (2021), the graphic novel that inspired the upcoming film.
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A Shift Toward Comic Accuracy in the New DCU
The costume evolution underscores a broader trend in superhero media: aligning cinematic portrayals with their comic book origins. In the past, franchises like the MCU and Fox’s X-Men slowly moved toward more comic-faithful designs as characters developed.
The DCU appears to be following suit early on. With only one live-action movie released under James Gunn and Peter Safran’s rebooted banner, it’s noteworthy that Supergirl has already received a visual overhaul—one that may reflect her narrative journey from isolation on a harsh Krypton to finding purpose and identity on Earth.
What the Costume Change Could Mean for the Story
Set photos from earlier this year reveal that Alcock was already wearing the updated suit during production for Supergirl, suggesting the costume change wasn’t added in post-production or after fan feedback. This indicates that her initial Superman appearance may have taken place earlier in her timeline, possibly depicting a hardened, survivalist version of Kara Zor-El.
The more polished and colorful costume could symbolize her evolution and newfound hope as she journeys toward Earth. Whether this change is a flash-forward, a time jump, or just a cinematic glow-up remains to be seen. Either way, it has stoked speculation and anticipation for Supergirl’s June 26, 2026 release.
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