Question: The Saved and Nitrate Kisses are both films of what genre?
Context: Nitrate Kisses is a 1992 experimental documentary film directed by Barbara Hammer.  According to Hammer, it is an exploration of the repression and marginalization of LGBT people since the First World War.  To celebrate the 30th anniversary of the Teddy Awards, the film has been selected to be shown at the 66th Berlin International Film Festival in February 2016. Photographic emulsion is a light-sensitive colloid used in film-based photography.  Most commonly, in silver-gelatin photography, it consists of silver halide crystals dispersed in gelatin.  The emulsion is usually coated onto a substrate of glass, films (of cellulose nitrate, cellulose acetate or polyester), paper, or fabric. The Arcadians is a 1927 British comedy film directed by Victor Saville (his directorial debut), and starring Ben Blue, Jeanne De Casalis and Vesta Sylva.  It is a silent adaptation of the musical "The Arcadians".  It is on the BFI 75 Most Wanted list of missing films, but the British Film Institute has reported that an "incomplete and deteriorating nitrate print ... was apparently viewed prior to July 2008".  It was made at the Lime Grove Studios in Shepherd's Bush. The Saved is a Dutch documentary released in 1998.  It was directed by Paul Cohen and Oeke Hoogendijk. Tender Fictions is a 1996 autobiographical documentary film directed by American experimental filmmaker Barbara Hammer.  It is the second of a trilogy of documentary films that includes "Nitrate Kisses" and "History Lessons".  Together, the three films are sometimes known as the "History trilogy".  "Tender Fictions" details Hammer's life and her attempts to "construct" a self.  The film was nominated for a prize at the 1996 Sundance Film Festival. Lyrical Nitrate (Dutch: "Lyrisch Nitraat" ) is a 1991 collage film by Peter Delpeut.  The film consists of clips from various silent films printed on decaying nitrocellulose (or nitrate) film stock, including shorts, documentaries, and travelogues.  There is no formal narrative.  Delpeut followed the film with 1993's "The Forbidden Quest", which also uses found footage; the two were released together on video and DVD. Perdón, viejita is a 1927 silent Argentine film directed and written by José A. Ferreyra.  Ferreyra was born on August 28, 1889 in Buenos Aires, Argentina.  He was a director and writer also known for Bewitching Kisses (1937) and La vuelta al Bulín (1926).  Ferreyra died on January 29, 1943, at age 53.  A fragment (34-minutes) of the film is currently available on YouTube.  The restored version will be presented in the San Isidro Film and Music Festival on November 15.  2016.  The nitrate copy of the film was provided by the Fundación Cinemateca Argentina and the restoration work was done by GOTIKA, Invasion literature (or the invasion novel) is a literary genre most notable between 1871 and the First World War (1914) but still practised to this day.  The genre first became recognizable starting in Britain in 1871 with "The Battle of Dorking", a fictional account of an invasion of England by Germany.  This short story was so popular it started a literary craze for tales that aroused imaginations and anxieties about hypothetical invasions by foreign powers, and by 1914 the genre had amassed a corpus of over 400 books, many best-sellers, and a world-wide audience.  The genre was influential in Britain in shaping politics, national policies, and popular perceptions in the years leading up to the First World War, and remains a part of popular culture to this day.  Several of the books were written by or ghostwritten for military officers and experts of the day who believed that the nation would be saved if the particular tactic that they favoured was or would be adopted. Reverend Willie Ray Lampley rose to national attention in the United States of America as a self-proclaimed prophet, the head of the Universal Church of God (Yahweh) based in Vernon, Oklahoma which was part of the Christian Identity movement.  Lampley was also the leader of a small far right paramilitary group called the Oklahoma Constitutional Militia.  In November 1995 he (aged 65) and his wife Cecilia (aged 47), along with John Dare Baird (aged 53), and Larry Wayne Crow (aged 56) were arrested under charges of conspiracy to manufacture and possess a destructive device.  According to the FBI their plan was to bomb abortion clinics, gay bars, federal buildings (including welfare offices of the Department of Human Services), the office of the Anti-Defamation League in Houston, Texas and the office of the Southern Poverty Law Center in Montgomery, Alabama.  According to court documents, Lampley intended to use a destructive device consisting of 'homemade C-4' made of ammonium nitrate, nitromethane, aluminum powder and a detonation device (made from toaster parts).  Lampley's plans were interrupted when FBI informant, Richard Schrum alerted authorities that the homemade bomb was about to be tested at Elohim City.  The FBI held that their foiling the plot "saved as many lives as what was lost in Oklahoma City". The George Eastman Museum Motion Picture Collection in Rochester, New York comprises about 28,000 titles, including features, shorts, documentaries, newsreels, and experimental moving images.  The collection is renowned for its holdings of silent films.  The George Eastman Museum owns the Louis B. Mayer Conservation Center, where its holdings of nitrate films are stored.  In 1996, the Eastman Museum founded the L. Jeffrey Selznick School of Film Preservation.
Answer: documentary