
James Gunn already wanted to make a Supergirl movie before he took over DC Studios.
Speaking at a press event attended by GamesRadar+ to debut the first full trailer for the movie, Gunn revealed that he already had his eye on the graphic novel Woman of Tomorrow, and even thought Milly Alcock would be perfect for the role. Supergirl indeed stars Alcock as Kara Zor-El, with I, Tonya director Craig Gillespie at the helm.