While Kurt Kren is a film maker, John Grierson is a what?
Kurt Kren Kurt Kren (September 20, 1929 - died in Vienna on June 23, 1998) was an Austrian avant-garde filmmaker. He is best known for his involvement with the Vienna Aktionists and the group of films that resulted, although this accounts for only a part of his career, and he later returned to the Structural roots of his third film "3/60: Bäume Im Herbst". Although not a seminal Structural film, "31/75: Asyl" is arguably one of the more satisfying films of the movement.
Karl Grönsfelder Karl Grönsfelder (18 January 1882 - 20 February 1964) was a Bavarian political activist and politician (KPD).