Swedish director Göran Hugo Olsson is directing project with Sfi backing.

Göran Hugo Olsson (The Black Power Mixtape) is working on feature documentary That Summer, which will include long-lost archive footage of the stars of the Maysles brothers’ 1975 doc Grey Gardens,

Olsson is reviving a project first initiated by artist Peter Beard, which chronicles his family of friends and creative collaborators in Montauk, Long Island in the 1970s.

Beard set up the project with Lee Radziwill, a relative of eccentric duo Edith Ewing Bouvier Beale (Big Edie) and Edith Bouvier Beale (Little Eddie), who were depicted in Grey Gardens and its 2006 follow-up The Beales Of Grey Gardens, which featured previously unused footage shot by the Maysles.

Andy Warhol also features in That Summer, and shot some of the newly-unearthed footage, as did director Jonas Mekas, with additional cinematography by Albert Maysles and Vincent Fremont.

Olsson and Swedish production company Story have rights to use footage.

The film is...