Aliens of the Deep is a 2005 documentary film, directed in part by James Cameron alongside fellow cameraman and friend Steven Quale, who would go on to direct "Final Destination 5" six years later, and filmed in the IMAX 3D format.
 It was produced by Walden Media and Walt Disney Pictures.
 Cameron teams with NASA scientists to explore the Mid-Ocean Ridges, submerged chains of mountains in the Atlantic and Pacific oceans that are home to some of the planet's more unusual forms of life.
Deep Sea 3D is a 3D IMAX documentary film about sea life.
 The documentary is directed by Howard Hall who has also directed other undersea films such as "Into the Deep" and "Island of the Sharks".
 The film is narrated by Johnny Depp and Kate Winslet.
 It also features music by Danny Elfman.
 The film is 40 minutes long.
Red Haircrow (born 1972) is a writer, educator and filmmaker with Chiricahua Apache, Cherokee and African American heritage.
 His work includes poetry, short stories, novellas and full-length books.
 His novel "The Agony of Joy" won Best LGBT Fiction in Global Ebooks Awards 2013, and the biography "Silence Is Multi-Colored In My World" about a young deaf, gay Russian, was a winner of a Rainbow Award 2012 in the category, Best Biography/Memoir.
 His non-fiction and current events articles are often on Native American issues and concerns, intercultural relations, family and living and working in Germany.
 Their current documentary film project Forget Winnetou is about Native stereotypes in Germany, and the continuing harmful effects of colonial and racism on both Native and non-Native communities and societies, which has been covered by some of Germany's largest new sources such as Deutschlandfunk Kultur , Der Freitag and Süddeutsche Zeitung .
Don't You Forget About Me is a 2009 Canadian documentary film about screenwriter, director, and producer John Hughes.
 Directed by Matt Austin, the film was named after the 1985 hit song by Simple Minds, which in turn was the theme song for Hughes' film "The Breakfast Club".
 The film specifically focused on Hughes' fade from prominence in the early 1990s.
Lest We Forget (1935) was the first feature-length documentary film with sound to be made in Canada.
 Written, directed and edited by Frank Badgley, who was then the Director of the Canadian Government Motion Picture Bureau, and W.W. Murray, with music by Edmund Sanborn and narrated by Rupert Caplan.
 A compilation, 10-reel film (using newsreel footage, graphics and staged sequences) recounting Canada’s role in the First World War, it is fast-paced and has a verbose narration but was well received by critics and audiences at the time.
 The Bureau was the precursor to the National Film Board of Canada.
Kim Longinotto (born 1952) is a British documentary film maker, well known for making films that highlight the plight of female victims of oppression or discrimination.
 Longinotto has made more than 20 films, usually featuring inspiring women and girls at their core.
 She’s delved into female genital mutilation in Kenya ("The Day I Will Never Forget")), women standing up to rapists in India ("Pink Saris"), and the story of "Salma", an Indian Muslim woman who smuggled poetry out to the world while locked up by her family for decades.
Before We Forget is a 2011 observational documentary film about two women with dementia, who live in an Asian society where terminal illnesses and dying remain taboo.
 It is directed by Singaporean first-time filmmakers Jeremy Boo and Lee Xian Jie, who have also started an online platform that encourages people in Asia to share their experiences about dementia.
Inside Deep Throat is a 2005 American documentary film about the 1972 pornographic film "Deep Throat", at the forefront of the Golden Age of Porn, and its effects on American society.
Linda Moulton Howe (born January 20, 1942) is an American investigative journalist and Regional Emmy award-winning documentary film maker best known for her work as a ufologist and advocate of a variety of conspiracy theories, including her investigation of cattle mutilations and conclusion that they are performed by extraterrestrials.
 She is also noted for her speculations that the U.S. government is colluding with aliens.
Forget Us Not is a 2013 feature-length documentary film by Heather Connell, which follows the stories of some of the 5 million non-Jewish Holocaust survivors including artist Ceija Stojka and is narrated by actor Ron Perlman.
 The documentary was released on the festival circuit in August 2013 and has won eight awards to date including Feature Documentary and Editing Awards Of Merit from Accolade Film Competition, Helping Hand International Humanitarian Award from the Rhode Island International Film Festival, Best of Festival at Vancouver's Columbia Gorge International Film Festival, Mark Of Distinction Film at the New York Independent Film Festival and Best Narration and World Peace Impact Award from the Artisan World Peace Hamptons Film Festival and Feature Documentary Audience Award at the First Glance International Film Festival Los Angeles.

Question: Are both Before We Forget and Aliens of the Deep a documentary film?
Answer: yes