CREATE TABLE table_18994724_1 (director_s_ VARCHAR, film_title_used_in_nomination VARCHAR)

Who directed the film Nuits d'arabie?
SELECT director_s_ FROM table_18994724_1 WHERE film_title_used_in_nomination = "Nuits d'Arabie"
SELECT "director_s_" FROM "table_18994724_1" WHERE "Nuits d'Arabie" = "film_title_used_in_nomination"