The first trailer for Supergirl sets up another huge DC retcon and gives Kara Zor-El an incredibly tragic origin story.

You know Milly Alcock from "House of the Dragons" and "Sirens." Now, she's flying high in this gritty new follow-up to David Corenswet's "Superman."

The DC Studios movie becomes the first trailer ever to be served up to every TikTok user in the United States and 12 other territories.

The Supergirl trailer depicts a city concealed in a bubble as Krypton dies. Many might assume this is Brainiac shrinking the city of Kandor as he does in the comics. However, this is not Brainiac shrinking Kandor. In fact, this isn't Kandor at all, but instead Argo City.

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Here are 8 major things to look out for in the Supergirl trailer, including story reveals, DC characters, and Easter eggs.

DC has released the first trailer for the Supergirl movie, and along with the new look at Milly Alcock's Kara is a fitting song that sets the tone.

The first trailer for Supergirl signals serious danger for Krypto, the beloved superdog introduced in 2025’s Superman and inspired by James Gunn’s own pet. The film confirms that Krypto belongs to Kara Zor-El, Superman’s cousin, and is her constant companion, living with her and even accompanying her to an intergalactic bar for her birthday.

It's unknown just how many cameos the upcoming Supergirl might have, but thanks to star Milly Alcock, we do know one major appearance.

House of the Dragon star Milly Alcock will play Kara Zor-El, AKA Supergirl, in the DCU Chapter One 's second big-screen offering. Superman's cousin is set to go on a "murderous quest for revenge" across the galaxy, accompanied by Krypto the Superdog, where she'll come up against Matthias Schoenaerts' Krem of the Yellow Hills.