The final Opus film and Ruttman's last completely abstract film, accompanied by an excellent 2008 soundtrack by Helga Pogatschar that is significantly more fitting than the previous more typical orchestral soundtracks of Ruttmann's time (though even more fitting would have been a musique concrete soundtrack that Ruttmann would later explore on Weekend in 1930).
Ruttmann's Opus series starts with a focus on organic Expressionist forms. By the fourth instalment, it has developed into an angular Constructivist formalism that utilises the…