Here's a movie that is "inspired" by true events, about a persistent teacher and a mom, Nona and Jamie, played by Viola Davis and Maggie Gyllenhaal, who launch a parent-power takeover of their kids' failing innercity school in Pittsburgh, with a view to turning it around. The film could theoretically shed light on the "free school" debate in this country, but it is self-consciously acted, with a cliched screenplay and a naive sense that if they succeed, everyone's troubles will all be over. It is well meant, undoubtedly about something that matters, and it bends over backwards not to trash the teachers' unions gratuitously, but amid the attempts at gritty reality, I found the happy-ending imperative unconvincing.