A strippeddown visual sonata in which elements of Langes habitual cinematic universe wall wasteland city square cars are captured by a camera more documentary than demiurgic as opposed to the transformation of energy and vision to be found in his later filmsThe filmic process used is however no less rigorous Urban prison transportation was filmed from the inside of a moving vehicle and is composed of lateral travelling shots which move consistently forward while swinging from left to right with a varying degree of acceleration There is no doubleexposure or editingincamera the background consists of walls parks wastegrounds stations and platforms These compositions in movement display various degrees of depth of field speed decreases as we retreat diffracted by the systematic presence of the grills and bars separating us from more distant motifs