If you get the chance to see Grey Gardens, see it. It's a 1975 documentary about this 80 year old woman and her daughter who live in a rundown, dirty ass mansion in New York. They're relatives of Jackie O and they are bizarre as hell.
It's being made into a movie this year, I believe, and it was a Broadway show.
Here's a clip of the daughter telling the producers about her "costume for the day". It's awesome.