First of all - and I'm only saying this because I started the game - but one word answers or movie titles is wasting an opportunity. This is your chance to both praise and knock a particular subject. Don't shy away from creativity.
Good: One of cinema's great writers of dialogue, with 5 screenplay Oscar nominations to back that up.
Bad: I know people can be intimidated by his films because they're often very talky, which people take to mean dull.