Riefenstahl, LeniRie‧fen‧stahl, Le‧ni /ˈriːfənʃtɑːl, ˈleɪni/(1902–2003) a German film director and photographer, known especially for the film Triumph of the Will which seemed to praise Hitler, about a very large Nazi meeting in nuremberg in 1934, and another about the 1936 Olympic Games