Question: Are both Grey Gardens and The Cove documentary films?

Context articles: Grey Gardens (estate)
Lois Wright
Albert and David Maysles
Yair Qedar
Jerry Torre
Grey Gardens
Phelan Beale Jr.
Grey Gardens (musical)
The Cove (film)
Grey Gardens (2009 film)

Grey Gardens is a 28-room house at 3 West End Road and Lily Pond Lane in the Georgica Pond neighborhood of East Hampton, New York.
 The lives of its residents were chronicled in the "Grey Gardens" 1975 documentary, 2006 Broadway musical, 2009 television movie, and numerous other books and documentaries.
Lois Erdmann Wright is an American artist, author, and local television personality.
 She is best known for her appearance in the 1975 independent documentary film "Grey Gardens" by Albert and David Maysles.
 She is the author of the memoir "My Life at Grey Gardens: 13 Months and Beyond".
 She currently hosts "The Lois Wright Show" for LTV Public Access in East Hampton.
 As an artist, she has exhibited at Guild Hall in East Hampton and at the National Arts Club in New York.
 Her art focuses mainly on Edith Bouvier Beale and Edith Ewing Bouvier Beale of Grey Gardens.
Albert (November 26, 1926 – March 5, 2015) and his brother David (January 10, 1931 – January 3, 1987) Maysles ( ) were an American documentary filmmaking team known for their work in the direct cinema style.
 Their best-known films include "Salesman" (1969), "Gimme Shelter" (1970) and "Grey Gardens" (1976).
Yair Qedar (Hebrew: יאיר קדר‎ ‎ , born June 13, 1969) is an Israeli filmmaker and a civil-rights activist.His academic training on 20th-century Hebrew literature (Tel Aviv University), propelled him into to The Hebrews — a trans media project on the Hebrew literary canon, centered on filmic portraits of the Hebrew writers.
 Eight documentary films were made in this framwork and six others are currently shot.
 The documentary films which he produced, wrote and directed are —"Bialik - King of the Jews", "The 5 Houses of Lea Goldberg" and "The Seven Tapes of Yona Wallach", 'the Awakener - the story of Y.H Brener' and 'Simple Woman -Zelda'— as well as the three films which he produced in the project - "Song of loves, Rabbi David Bouzaglo", "the Raven, Zeev Jabotinki" and "Mrs Rachel Bluestein" – aired on Israeli TV, circulated far and wide in cinematheques, community and cultural centers, in Israel and around the world (USA and Canada, Europe, Australia and Russia) earning 10 awards (2016: first prize for filmmaking in the field of Jewish culture by the ministry of Education in Israel, 2015: the "Hebrews" films won the prize for best television project in the Israeli Documentary competition).
 The project, both digital and print, offers altogether eight documentary films, a video archive and several books.
Jerry “The Marble Faun” Torre (b. 1953?
/1955) is an American sculptor.
 He is best known for his appearance in the 1975 independent documentary films "Grey Gardens" and "The Beales of Grey Gardens" by Albert and David Maysles.
 As a sculptor, his work has been shown in several galleries in New York City and written about in The New York Times, The Wall Street Journal, Vogue, Architectural Digest, Forbes, among other publications.
 He is affectionately known among cult-film followers as “The Marble Faun”; a nickname that Edith Bouvier Beale gave him upon their first meeting.
 Torre worked as an assistant to Wayland Flowers, and through Aristotle Onassis obtained a job tending gardens for the Royal Family of Saudi Arabia.
 He was portrayed in the Tony Award winning Broadway musical "Grey Gardens" in 2006.
 His life has been documented in the 2011 film "The Marble Faun of Grey Gardens".
Grey Gardens is a 1975 American documentary film by Albert and David Maysles.
 The film depicts the everyday lives of two reclusive, formerly 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.
Phelan Beale Jr. (16 June 1920 – 26 June 1993) was an American journalist and unemployment compensation law expert.
 Beale was a son of Edith Ewing Bouvier Beale and a brother of Edith Bouvier Beale whose lives were highlighted in the documentary "Grey Gardens".
 Beale was a first cousin of Jacqueline Kennedy Onassis and Lee Radziwill.
Grey Gardens is a musical with book by Doug Wright, music by Scott Frankel, and lyrics by Michael Korie, based on the 1975 documentary of the same title about the lives of Edith Ewing Bouvier Beale ("Big Edie") and her daughter Edith Bouvier Beale ("Little Edie") by Albert and David Maysles.
 The Beales were Jacqueline Kennedy's aunt and cousin, respectively.
 Set at Grey Gardens, the Bouviers' mansion in East Hampton, New York, the musical tracks the progression of the two women's lives from their original status as rich and socially polished aristocrats to their eventual largely isolated existence in a home overrun by cats and cited for repeated health code violations.
 However, its more central purpose is to untangle the complicated dynamics of their dysfunctional mother/daughter relationship.
The Cove is a 2009 documentary film directed by Louie Psihoyos which analyzes and questions dolphin hunting practices in Japan.
 It was awarded the Academy Award for Best Documentary Feature in 2010.
 The film is a call to action to halt mass dolphin kills, change Japanese fishing practices, and to inform and educate the public about the risks, and increasing hazard, of mercury poisoning from dolphin meat.
 The film is told from an ocean conservationist's point of view.
 The film highlights the fact that the number of dolphins killed in the Taiji dolphin drive hunting is several times greater than the number of whales killed in the Antarctic, and asserts that 23,000 dolphins and porpoises are killed in Japan every year by the country's whaling industry.
 The migrating dolphins are herded into a cove where they are netted and killed by means of spears and knives over the side of small fishing boats.
 The film argues that dolphin hunting as practiced in Japan is unnecessary and cruel.
Grey Gardens is an HBO film about the lives of Edith Bouvier Beale/"Little Edie", played by Drew Barrymore, and her mother Edith Ewing Bouvier/"Big Edie", played by Jessica Lange.
 Co-stars include Jeanne Tripplehorn as Jacqueline Kennedy (Little Edie's cousin) and Ken Howard as Phelan Beale (Little Edie's father).
 The film, directed by Michael Sucsy and co-written by Sucsy and Patricia Rozema, flashes back and forth between various events and dates ranging from Little Edie as a young débutante in 1936 moving with her mother to their Grey Gardens estate through the filming and premiere of the actual 1975 documentary "Grey Gardens".