By Bob Garver“Supergirl” stars Milly Alcock as Kara Zor-El, a cousin of Superman’s introduced in last year’s reboot. She doesn’t like Earth as much as Superman does, and mostly spends her days moping around with no friends, save for Krypto the Superdog, a not-quite-right CGI creation.The film finds Supergirl teaming up with Ruthye (Eve Ridley), a teenager looking to avenge her family’s death at the hands of space pirate Krem (Matthias Schoenaerts). Krem needs to be defeated, but Supergirl also wants to teach Ruthye that revenge through murder will not bring her the closure she seeks. Their dynamic is based on “True Grit,” and gritting is what I had to do with my teeth every time the stiff, overly formal yet too immature Ruthie had a line in this movie.On their q
