If the eyes are the windows to the soul, Vitalina Varela’s are a skylight. Whole texts could be written on the history of heartache visible in her steady gaze. Varela star of the haunting, somnambulistic movie that bears her name spends long stretches of the runtime staring into the middle distance, all but her face partially or completely shrouded in shadow. Was it da Vinci who first made that observation about eyes and the soul? He was born several centuries too early to witness, in this actor’s stony but revealing countenance, such a perfect illustration of the idea. Varela’s is an immortal face, a canvas of emotion fit for framing. Which is maybe why Pedro Costa, the revered Portuguese director of