‘Supergirl’ Trailer: Milly Alcock As Kara Zor-El Shines With Her Cosmic Action in James Gunn’s Upcoming Film, Jason Momoa Appears As Lobo (Watch Video)

The official trailer for 'Supergirl', starring Milly Alcock and directed by Craig Gillespie, debuted on March 31, 2026, showcasing a gritty, cosmic adaptation of the Woman of Tomorrow comic series. The footage highlights Kara Zor-El’s journey across alien landscapes alongside Krypto the Superdog.