“Nostra Fides” is a bi-tridimensional film, a motley collection of Edgar Pêra archive material featuring the emotions of football fans. It portrays the warmth of fans, their unshakeable faith in victory, the bitterness of defeat, the tedium of draws and their hatred of their rivals. Cine-mass psychology. The National Geographic for humanoids. Alternating between 2D and 3D, “Nostra Fides” requires special gymnastics from its viewers.