Are Robert J. Flaherty and Andrew Niccol both directors of films?
yes
Andrew Niccol
Andrew M. Niccol (born 10 June 1964) is a New Zealand screenwriter, producer, and director.
 He wrote and directed "Gattaca" (1997), "Simone" (2002), "Lord of War" (2005), "In Time" (2011), "The Host" (2013), and "Good Kill" (2014).
 He also wrote and co-produced "The Truman Show", which earned an Academy Award nomination for Best Original Screenplay in 1999 and won a BAFTA award for Best Screenplay.
 His films tend to explore social, cultural and political issues, as well as artificial realities or simulations.
Robert J. Flaherty
Robert Joseph Flaherty, FRGS ( ; February 16, 1884 – July 23, 1951) was an American filmmaker who directed and produced the first commercially successful feature-length documentary film, "Nanook of the North" (1922).
 The film made his reputation and nothing in his later life fully equaled its success, although he continued the development of this new genre of narrative documentary, e.g. with "Moana" (1926), set in the South Seas, and "Man of Aran" (1934), filmed in Ireland's Aran Islands.
 He is considered the "father" of both the documentary and the ethnographic film.
Amir Mokri
Amir M. Mokri (Persian: امیر مکری‎ ‎ ; born June 11, 1956) is an Iranian-born American cinematographer known for his work on blockbuster action films such films as "Bad Boys II", "Fast & Furious", "Man of Steel" and "," collaborating with directors like Michael Bay, Andrew Niccol, and Zack Snyder. Anon (film)
Anon is an upcoming science fiction thriller film directed and written by Andrew Niccol.
 The film stars Clive Owen and Amanda Seyfried. Lord of War
Lord of War is a 2005 crime war film written, produced, and directed by Andrew Niccol, and co-produced by and starring Nicolas Cage.
 It was released in the United States on September 16, 2005, with the DVD following on January 17, 2006, and the Blu-ray Disc on July 27, 2006.
 Cage plays an illegal arms dealer, inspired by the stories of several real-life arms dealers and smugglers.
 The film was officially endorsed by the human rights group Amnesty International for highlighting the arms trafficking by the international arms industry. Zach Staenberg
Zach S. Staenberg, A.C.E. (born August 1951) is an American film editor best known for his work on action films and the "Matrix Trilogy".
 Staenberg won an Academy Award and two ACE Eddie Award for the editing of "The Matrix" (1999) and for HBO's "Gotti" (1996) for which he was also nominated for an Emmy.
 The "Matrix" films were written and directed by the Wachowskis, with whom Staenberg has had an extended collaboration dating from 1996.
 He is a frequent collaborator of director Andrew Niccol. Louisiana Story
Louisiana Story (1948) is a 78-minute black-and-white American film.
 Although the events and characters depicted are fictional and the film was commissioned by the Standard Oil Company to promote its drilling ventures in the Louisiana bayoux, it is often misidentified as a documentary film, when in fact, it is a docufiction.
 The script was written by Frances H. Flaherty and Robert J. Flaherty, directed by Robert J. Flaherty. Special Service
"Special Service" is the sixty-fourth episode and the twenty-ninth episode of the third season (1988–89) of the television series "The Twilight Zone".
 Special Service was written by J Michael Straczynski, who later created "Babylon 5".
 The critically acclaimed feature film "The Truman Show", written by Andrew Niccol, was inspired by this episode, and won the 1999 Hugo Award for Best Dramatic Presentation, beating the "Babylon 5" finale "Sleeping In Light", also written by Straczynski. The Host (2013 film)
The Host is a 2013 American romantic science fiction thriller film adapted from Stephenie Meyer's novel of the same name.
 It tells the story of a young woman, Melanie, who is captured after the human race has been taken over by parasitic aliens called "Souls".
 After Melanie is infused with a soul called "Wanderer", Melanie and the alien "Soul" vie for control of her body.
 Written and directed by Andrew Niccol, the film stars Saoirse Ronan, Max Irons, Jake Abel, William Hurt, and Diane Kruger.
 Released in theaters on March 29, 2013, the film was poorly received by critics. The Truman Show
The Truman Show is a 1998 American satirical science fiction film directed by Peter Weir, produced by Scott Rudin, Andrew Niccol, Edward S. Feldman, and Adam Schroeder, and written by Niccol.
 The film stars Jim Carrey as Truman Burbank, adopted and raised by a corporation inside a simulated television show revolving around his life, until he discovers it and decides to escape; additional roles are provided by Laura Linney, Noah Emmerich, Natascha McElhone, Holland Taylor, Ed Harris, and Brian Delate.