Kathryn Ramey is a filmmaker and anthropologist whose work operates at the intersection of experimental film processes and ethnographic research.  Her award winning and strongly personal films are characterized by manipulation of the celluloid including hand-processing, optical printing, and various direct animation techniques. 

Using educational, touristic and military media/artifacts alongside contemporary voices, images and noises from Puerto Rico EL SIGNO VACÍO (the empty sign) is a feature length cinematic essay investigating the 120-year occupation of Puerto Rico by the United States.