Who are the different directors of films which had market estimation in 1995?
SELECT DISTINCT T1.Director FROM film AS T1 JOIN film_market_estimation AS T2 ON T1.Film_ID  =  T2.Film_ID WHERE T2.Year  =  1995
SELECT DISTINCT T1.Director FROM film AS T1 JOIN film_market_estimation AS T2 ON T1.Film_ID  =  T2.Film_ID WHERE T2.Year  =  1995
[{'Director': 'Steven Spielberg'}]