What are the different film Directors?
SELECT DISTINCT Director FROM film
SELECT DISTINCT Director FROM film
[{'Director': 'Steven Spielberg'}, {'Director': 'Sydney Pollack'}, {'Director': 'Taylor Hackford'}, {'Director': 'Sylvester Stallone'}, {'Director': 'Bob Clark'}, {'Director': 'Nicholas Meyer'}, {'Director': 'Walter Hill'}, {'Director': 'Tobe Hooper'}, {'Director': 'Colin Higgins'}, {'Director': 'John Huston'}, {'Director': 'Sidney Lumet'}, {'Director': 'Richard Attenborough'}, {'Director': 'Ted Kotcheff'}]