Supergirl Film Footage Shown at CinemaCon with Details on Milly Alcock's Preparation

DC Studios presented footage from the upcoming film Supergirl at CinemaCon, an annual convention for movie theater owners held in Las Vegas. The presentation occurred on April 14, 2026. Milly Alcock stars in the film as Kara Zor-El, known as the Girl of Steel.

The footage depicts Kara Zor-El battling pirates who eject her into deep space. The entire film is set on other planets and features various alien characters. In one scene, Supergirl communicates with an alien using clicking noises, which was presented for comedic effect.

He noted that she performed dramatic scenes involving her parents while speaking Kryptonian. Gillespie also reported that Alcock trained for one hour each day before shooting began to prepare for the film's stunts.

Alcock commented on her experience, stating it was enjoyable. The story follows Supergirl traveling through space with her dog, Krypto, to establish her own identity separate from her relative, Superman. She encounters an alien girl named Ruthye seeking revenge for her father's death and joins in the pursuit of justice.

Cast and Production Details The cast includes Milly Alcock, Matthias Schoenaerts, Eve Ridley, David Krumholtz, Emily Beecham, and Jason Momoa as the alien bounty hunter Lobo.

Momoa previously portrayed Aquaman in DC films. He remarked that his characters Aquaman and Lobo would likely collaborate rather than fight if they met. DC Studios co-chairman Peter Safran responded to Momoa's comment by suggesting a potential future film featuring the characters.

Supergirl is the second project in the rebooted DC Universe under DC Studios co-chairmen James Gunn and Peter Safran. It follows the previous year's Superman film, which starred David Corenswet as Superman and Rachel Brosnahan as Lois Lane. James Gunn, who was unable to attend CinemaCon due to work on another project, has previously described Supergirl as more intense than earlier versions of the character.

The film is directed by Craig Gillespie, known for I, Tonya. It is scheduled for theatrical release on June 26.

Broader DC Universe Context Upcoming DC projects include the film Clayface, a body horror story about a shape-shifting Batman villain, set for release in theaters in October.

Theater owners at CinemaCon viewed the footage as part of broader announcements for upcoming releases.