Natan also invested heavily in research and development to expand Pathé's film business. In 1929, he pushed Pathé into sound film. In September, the studio produced its first sound feature film and its first sound newsreel a month later. Natan also launched two new cinema-related magazines, "Pathé-Revue" and "Actualités Féminines", to help market Pathé's films and build consumer demand for cinema. Under Natan, Pathé also funded the research of Henri Chrétien, who developed the anamorphic lens (a technology which later led to the creation of CinemaScope and other widescreen film formats common today).