Whenever a film is made about true events or people, I check to see if there is a documentary, and there was for this film. It was made by none other than the great Maysles brothers, Albert & David. Just finished watching this and it was interesting. Unfortunately I was distracted by something with my family today and I couldn't enjoy it as I might have. I'm trying to digest something huge, which I found out about at 5:36pm. I'm trying to get to a positive place with it.
Regarding Grey Gardens, I'm sure the recent film starring Jessica Lange & Drew Barrymore was much more stylish, but this documentary was very authentic. I was also distracted by researching these women on the internet, while watching the documentary.. I should probably watch it again, but I doubt I will. I pretty much have the scoop now! I recommend watching it. It is an interesting study in, extreme eccentricity, at least.