The 2026 film 'Supergirl' ambitiously attempts to expand the DC Universe, bringing a familiar yet fresh perspective to the iconic character of Kara Zor-El. Milly Alcock steps into the role with a performance that infuses Kara with a mix of vulnerability and strength, establishing her as a heroine worth rooting for. The moments when Alcock's portrayal shines particularly bright are those intimate exchanges where Kara grapples with her responsibilities, torn between seeking vengeance and exhibiting compassion. Unfortunately, while Alcock’s performance is a redeeming quality, the film struggles in key narrative aspects, which ultimately holds it back from achieving its full potential.

The film’s premise is engaging, launching Kara on an epic interstellar journey of vengeance and justice in response to a ruthless adversary getting too close to home. This foundational concept has the makings of a compelling story, suggesting high stakes and personal relevance. Yet, the execution reveals a disjointed narrative. Scenes meant to strike an emotional chord often falter, lacking the necessary depth to resonate. This inconsistency in tone creates an uneven viewing experience; moments of levity clash with darker themes, leading to confusion about what the film truly wants to convey.

Visually, the film achieves a certain charm, with vibrant CGI landscapes that highlight the breadth of its interstellar setting. However, these beautiful sequences occasionally feel like window dressing, unable to compensate for the uneven pacing and lack of cohesive character arcs. Characters who could have served as meaningful allies or adversaries feel underdeveloped. This is particularly true for the film’s antagonist, who lacks sufficient backstory to make their motivations believable. Without that essential development, the confrontations between Kara and her foe lack the emotional weight that such a story demands.

On a positive note, the film's action sequences deliver excitement, showcasing Kara’s superhuman abilities in ways that are both engaging and pleasing to the eye. Whether she's engaged in aerial battles or navigating intricate escape plans, Alcock embodies the character with physicality and charisma. Yet, even these thrilling moments are punctuated with a sense of disconnect, as if they exist in a vacuum rather than as part of a larger, compelling narrative. The sporadic high points raise questions about what could have been had the filmmakers leaned into a more consistent vision.

Perhaps the film's most significant misstep lies in its character development. Secondary characters have the potential to add depth and nuance to Kara’s journey, but they often feel like mere placeholders. Their interactions provide glimpses of what could be, leaving viewers wanting more substantial collaboration with Kara. This gap dulls the impact of their presence, and by the film’s conclusion, many viewers may find themselves wishing for a more fleshed-out supporting cast.

Despite its flaws, 'Supergirl' proves to be an entertaining ride at times. There are engaging moments filled with wit and humor, often drawing on the lighter side of Kara's personality. However, these instances also serve as a poignant reminder of the stronger film that could have emerged had the storytelling reached the same level as Alcock's performance. In a landscape populated by superhero films, having a compelling protagonist isn’t enough to ensure success when the foundations of the story are shaky.

Ultimately, 'Supergirl' is a film that emits potential, but a lack of coherent storytelling and character depth keeps it grounded rather than allowing it to soar. Yes, Alcock brings an admirable force to the screen, but without a narrative worthy of her talents, the film feels more like a missed opportunity than a new benchmark for the DC Universe. It offers enough entertainment to warrant a single viewing, but the unevenness makes it less likely to attract repeated engagement or resonate deeply with audiences seeking more than surface-level enjoyment.