Are Ulrich Seidl and Amir Naderi both directors ?
Amir Naderi Amir Naderi (Persian: امیر نادری‎ ‎ , born 15 August 1946 in Abadan) is an Iranian film director, screenwriter, and photographer. He is best known for "The Runner" and "Vegas: Based on a True Story".
Rudolf Nussgruber Rudolf Nussgruber (7 April 1918 – 26 July 2001) was an Austrian film director. In 1962, he co-directed the documentary film "Mediterranean Holiday" with Hermann Leitner and it was entered into the 3rd Moscow International Film Festival. He directed more than 30 films between 1955 and 1985.