Felix Bush (Robert Duvall) is that old coot that every rural community used to have. 'Get Low,' based in part on the true story of a legendary Tennessee loner from the 1930s, starts with a fever dream, a house afire and a figure, a man who dives from an upper-story window and staggers off as the house continues to burn. It's a pleasure to watch Duvall engaged with old pros like Sissy Spacek and Bill Murray. Grade: B.

