CREATE TABLE film_market_estimation (estimation_id DECIMAL, low_estimate DECIMAL, high_estimate DECIMAL, film_id DECIMAL, type TEXT, market_id DECIMAL, year DECIMAL)
CREATE TABLE film (film_id DECIMAL, title TEXT, studio TEXT, director TEXT, gross_in_dollar DECIMAL)
CREATE TABLE market (market_id DECIMAL, country TEXT, number_cities DECIMAL)

Return the titles and directors of films that were never in the market of China.
SELECT title, director FROM film WHERE NOT film_id IN (SELECT film_id FROM film_market_estimation AS T1 JOIN market AS T2 ON T1.market_id = T2.market_id WHERE country = 'China')
SELECT "title", "director" FROM "film" WHERE NOT "film_id" IN (SELECT "film_id" FROM "film_market_estimation" AS "T1" JOIN "market" AS "T2" ON "T1"."market_id" = "T2"."market_id" WHERE "country" = 'China')