Supergirl is the next upcoming movie in the new DC Universe and stars Milly Alcock in the titular role, but fans will also spot a familar face when it hits theaters in June 2026

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.

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

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.

DC Studios' Supergirl has sparked a flurry of mixed reactions, with some praising Milly Alcock's acting and portrayal of Kara Zor-El, while others criticise its edgy, Guardians Of The Galaxy-style humour and setting.

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

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.

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