The Maysles brothers' 1975 portrait of Big and Little Edie Beale in their crumbling East Hampton mansion. The original direct-cinema legend.
From Wikipedia
Grey Gardens is a 1975 American documentary film by Albert and David Maysles. The film depicts the everyday lives of two reclusive, upper-class women, a mother and daughter both named Edith Beale, who lived in poverty at Grey Gardens, a derelict mansion at 3 West End Road in the wealthy Georgica Pond neighborhood of East Hampton, New York. The film was screened at the 1976 Cannes Film Festival but was not entered into the main competition.