The 1950s brought Austria the largest film production boom in its history, but without a neorealist or New Wave school, which had revitalized other European cinemas during this era, and with no national subsidies, the commercial Austrian film industry collapsed by 1968 and experimental film remained very limited. By the 1970s, television had become the medium for entertainment film, the short films of the radical Viennese Actionism movement rejected narrative structure completely, and Austria's alpine landscape as well some of its directors and actors were used for West German sex comedy productions.