Supergirl (out Jun 25) is a great break for Australian actress Milly Alcock (she's the best thing in it) but she's not supported by anyone else. The script is the biggest letdown. Part is an origin story with flashbacks to her upbringing, and part is a seen-it-all-before tale of a hero risking the lives of everyone to save someone they love… in this case a dog (giving off John Wick vibes). Grade: C+.