Don't mess with Allison Janney.
The Oscar- and Emmy-winning actress has long been nobody's fool, but she takes her toughness up a notch (or nine) in "Lou," in which she plays a stone cold survivalist named Lou who has more than a few secrets stowed away. Get too close to those secrets and you'll be sorry, as she proves when she takes out a couple of poor saps in a cabin using a can of food as her only weapon, a scene that brings new meaning to the term "opening up a can of whoop ass."
As the film opens, Lou is not a happy camper: she has a gun to her head and she's ready to pull the trigger, but she's interrupted when her neighbor Hannah (Jurnee Smollett), to whom she rents her space, barges in. It turns out Hannah's ex-, a dangerous former Green Beret, has showed up and kidnapped her daughter. Lou, falling back on her old habits, finds renewed purpose and decides to help her track him down.