You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

[EX Q]: Category: LAW ENFORCEMENT 
Clue: This police force developed from bands of Indian fighters who protected American settlers in Mexico
[EX A]: the texas rangers

[EX Q]: Category: LITERATURE & FILM 
Clue: Nicole Kidman, Helena Bonham Carter & Cybill Shepherd have all starred in films based on this man's works
[EX A]: henry james

[EX Q]: Category: ACTOR-DIRECTORS 
Clue: It's rare to get Oscar nominations for Best Director & Best Actor for the same film; he is 1 or the 2 who did it twice
[EX A]:
clint eastwood & warren beatty