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.
Yuri Krotkov Yuri Vasilevich Krotkov (Юрий Васильевич Кротков, 11 November 1917 - 26 December 1981) was a Russian dramatist. Working as a KGB agent, he defected to the West in 1963.