Supergirl is similar to Guardians of the Galaxy because it does not “religiously” follow its source material, DC head James Gunn has said.
The upcoming DC Universe (DCU) blockbuster will be loosely based on author Tom King’s 2022 comic run Supergirl: Woman of Tomorrow, and Gunn has now explained the movie will be like his Guardians of the Galaxy trilogy, as Supergirl will retain the “core” of King's original story, while also venturing into new territory.