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.
Roger Le Bon Roger Le Bon (1891–1956) was a French film producer and director. Le Bon co-directed a number of French-language versions of films made by the German studio UFA. In 1932 he co-directed the crime thriller "Narcotics".