At times Dreyer’s tension even bursts out of the frame. In a well-known composition from The Passion of Joan of Arc, a guard, partially hidden by the left vertical frame line, is tugging at Joan’s arm while Joan herself is struggling to pull herself outside of the right vertical frame line. The frame line seems an arbitrary restriction on a tension which is on the verge of flying apart. The effect is similar to that which one experiences standing in the nave of a Gothic cathedral as the lines of force explode from the ceiling driving straight through the aisles, through the walls, and out into the flying buttresses. The frame or the nave, the movie or the cathedral themselves, are artistic restrictions upon a reality which by itself would disintegrate.