The trailer for DC's newest "Supergirl" movie, featuring Milly Alcock as the title character, has been released. The film follows a conversation between Supergirl and her super cousin, Clark Kent, where Clark Kent expresses concern about her absence from Earth and worries about finding her people. Instead of friends, Supergirl focuses on her relationship with her dog, Krypto, who is poisoned by Krem villains. The trailer also gives a glimpse at Jason Momoa's role as antihero Lobo.