It's official - there's a new Supergirl taking flight in James Gunn's burgeoning DC Studios movie universe, as House of the Dragon actor Millie Alcock has been cast as the character for her in-development solo movie.
Supergirl is one of the most iconic, influential superheroes of all time, and one of the many female superheroes who defined the growing place of women in comics. But she's not alone - she's part of a long tradition of great female superheroes.
