The filmmaker Joris Ivens was the son of C.A.P. Ivens, owner of the CAPI photography shop in Nijmegen. With the help of his father’s employees, in the 1910s the young Joris Ivens made the short film De wigwam, with roles for his parents, brothers, and sisters. Ivens studied economics and photography. From the end of the 1920s, he was one of the vital figures in the world of Dutch avant-garde film. As a technical consultant, he was involved with the Filmliga, and made important avant-garde films...