keira knightley stars in "official secrets" based on the real-life story of whistle-blower katherinewho leaked a secret memo exposing a spy operation leading up to the iraq war. >> someone has betrayed their government and their country. >> you might need our help. >> if we do not go public, we would be conceding that no one can ever tell the people when their government is lying. >> your marriage could be interrogated. >> my husband had absolutely nothing to do with this. >> he's a muslim. >> i'm sorry? >> also starring ralph fiennes and matthew goode, "official secrets" is scoring a solid 80% on rotten tomatoes. leah greenblatt writes, it tends to lean a little heavily on the kind of righteous perfectly calibrated indignation that happens much more often in aaron sorkin dramas than in real life. although official secrets may take liberties with the historical record, it's effective as both a drama and a cautionary tale. >> okay, 80% there. next to a supernatural thriller from the producers of "get out." david oyelowo stars in "don't let go" as a grieving uncle who gets a phone call