You wouldn't, of course, expect nonstop cartoon looniness to reign for the full 2 ½ hours of this three-act comedy; the tension in the plot is the 'surprise' visit to the Sycamores by the stodgy, patrician Kirbys, parents of ardent Tony (Fran Kranz), who wants to marry the Sycamores' 'normal' daughter, Alice (Rose Byrne). But the embrace by the Sycamores of their quirky individualism feels less than total. That seems especially true for Jones, who, in the guise of the family patriarch, proves a genial rather than compelling presence. When he expounds on his character's peculiar philosophy - why, for example, Grandpa Martin doesn't pay taxes - it isn't with the kind of conviction that helps us understand, or giggle at, the sort of quaint contrarian he is meant to be. Lovers of vintage screwball comedy - a kind of lightweight cousin of absurdism - will dig its splashy return to Broadway. Others will have to wait for a more convincing resuscitation of the genre.