After a power source for the community of Krypton survivors is accidentally whisked to earth, Kara-El, cousin to Superman and niece to Jor-El, chooses to go to earth to find it, and bring it back.

The rest of the Supergirl cast hasn't been completely locked down ... For more, check out our guides to all the upcoming DC movies and TV shows, as well as our breakdown of how to watch the ...

Despite these changes, Supergirl’s story remains even more tragic than her cousin Kal-El’s, which should make for a unique DC film. Who is in the cast of Supergirl: Woman of Tomorrow?

lot attended by Collider’s Steve Weintraub, Gunn shared an update on Supergirl’s production while also praising the cast and crew: "We're midway through production now on Supergirl.