In the 1960s Yat Malmgren taught movement, based on principles derived from Laban; Cicely Berry taught voice to students and later the Royal Shakespeare Company, John Allen, principal from 1972 to 1978, founded the Glyndebourne Children's Theatre, was the leading organiser of the Communist Party's Unity Theatre, London, where he coordinated the first Living Newspaper, Busmen (1937), and was a founding member of the Group Theatre, also in the mid-1930s; Litz Pisk was Head of Movement (1964–1970), having previously worked with Bertolt Brecht and Kurt Weill in Vienna, and then Michel Saint-Denis at the Old Vic Theatre School.