Poto and Cabengo

In the late 1970s, Grace and Virginia Kennedy -- or as they referred to themselves, Poto and Cabengo -- made headlines as the identical twins who had invented their own private, indecipherable language, in which they communicated until the age of eight. This fascinating, Brechtian documentary from former Godard collaborator Jean-Pierre Gorin sets its sights on the fringes of American society to solve a linguistic mystery: what are they saying?