Are León Klimovsky and Roger Avary both screenwriters?
León Klimovsky León Klimovsky (16 October 1906–8 April 1996) was an Argentine film director, screenwriter and film producer.
Alexander Knyazhinsky Alexander Leonidovich Knyazhinsky (Russian: Александр Леонидович Княжинский , January 24, 1936, Moscow, Soviet Union – June 14, 1996, Moscow, Russia) was a Russian cinematographer, noted for his work on Andrey Tarkovsky's "Stalker".