If you have read Swing Time by Zadie Smith, here is a chance to see the film (1936) that gives the novel its title, and feel firsthand what Zadie Smith’s protagonist does while rewatching the film: the sheer delight of Fred and Ginger’s dances, the knot in the stomach and confusion from reeling shadows cast into the future by the “Bojangles of Harlem” number. Fabulous dancing, wonderfully corny story, and things to think about.