Which 2025 DCU film introduced Supergirl in its final scene?

Which 2025 DCU film introduced Supergirl in its final scene? Superman. Milly Alcock’s Kara Zor-El appears in the final scene of Superman (2025), establishing her presence in the new DC Universe before her solo film.

In that sequence, Kara arrives at the Fortress of Solitude and reunites with her dog, Krypto. The cameo introduces her as Superman’s cousin and gives viewers an early glimpse of the more rebellious, party-loving version of the character developed in Supergirl (2026).

The scene serves as a direct bridge between the two films. Supergirl is not first introduced in Peacemaker, The Flash, or Creature Commandos; those are separate DC projects. Superman also features David Corenswet as Clark Kent, making the ending especially significant for the shared universe’s family history and future storylines.