Supergirl trailer released starring Milly Alcock as Superman's cousin.

Warner Bros. Pictures released the trailer for the new DC Universe film "Supergirl", starring Milly Alcock as Superman’s cousin. The movie follows Kara as she faces a ruthless adversary who strikes close to home, forcing her on an interstellar journey. The trailer highlights her emotional bond with her dog, Krypto, who is poisoned and must receive an antidote within three days to survive.