John Lithgow and Blythe Danner play septuagenarian oddballs who fall for each other in “The Tomorrow Man,” written and directed by Noble Jones. These small-town eccentrics live in an unnamed part of the American Midwestern-heartland, and possibly the site of a foreseeable doomsday scenario. But at heart “The Tomorrow Man” is a gentle love story, and the fun comes from watching actors at the top of their gameplay the wonkiest couple imaginable in hilariously awkward courtship scenes.
