Question: Are David Fincher and Vincenzo Natali both film directors ?

Context articles: David Fincher
ABCs of Death 2
Vincenzo Natali
Cypher (film)
Pascal Trottier
Haunter (film)
Steve Hoban
Nothing (film)
Cube (film)
Jack Fincher (screenwriter)

David Andrew Leo Fincher (born August 28, 1962) is an American director and producer, notably for films, television series and music videos.
 He was nominated for the Academy Award for Best Director for "The Curious Case of Benjamin Button" (2008) and "The Social Network" (2010).
 For the latter, he won the Golden Globe Award for Best Director and the BAFTA Award for Best Direction.
ABCs of Death 2 is a 2014 American anthology horror comedy film produced by Ant Timpson and Tim League.
 It contains 26 different shorts, each by different directors spanning various countries.
 It is a sequel to the 2012 film "The ABCs of Death".
 Directors featured include Jim Hosking, Lancelot Oduwa Imasuen, the Soska sisters, Julian Barrett, Rodney Ascher, Kristina Buožytė, Larry Fessenden, Aharon Keshales, Bill Plympton, and Vincenzo Natali.
Vincenzo Natali (born January 6, 1969) is an American-Canadian film director and screenwriter, best known for writing and directing science fiction films such as "Cube", "Cypher", "Nothing", and "Splice".
Cypher (also known as Brainstorm), is a 2002 science fiction thriller film starring Jeremy Northam and Lucy Liu.
 It was written by Brian King and directed by Vincenzo Natali.
 Jeremy Northam plays an accountant whose hope for a career in corporate espionage takes an unexpected turn.
 The film was shown in limited release in theaters in the US and Australia, and released on DVD on August 2, 2005.
 The film received mixed reviews, and Northam received the Best Actor award at the Sitges Film Festival.
Pascal Trottier is a Canadian filmmaker and screenwriter.
 He graduated from the Canadian Film Centre in 2005.
 His credits include "The Colony", starring Laurence Fishburne and Bill Paxton, and the horror feature "Hellions", directed by Bruce McDonald and starring Chloe Rose and Robert Patrick, which had its world premiere at the 2015 Sundance Film Festival.
 In 2013, he wrote for the horror TV series "Darknet", produced by Steve Hoban and Vincenzo Natali, and penned a segment of the horror anthology feature film "A Christmas Horror Story", which won the Writer's Guild of Canada award for Best Feature Screenplay in 2016.
Haunter is a 2013 Canadian supernatural horror film directed by Vincenzo Natali, written by Brian King, and starring Abigail Breslin.
 The film premiered at the 2013 South by Southwest Film Festival, and was picked up for U.S. distribution there by IFC Midnight.
Steven "Steve" Hoban (born 1964) is a Canadian film producer.
 He has been nominated for three Genie Awards and won another.
 He has collaborated with Vincenzo Natali, David Hewlett, and Chris Landreth on multiple films.
 He is perhaps best known for "Splice" and the "Ginger Snaps" trilogy.
Nothing is a 2003 Canadian philosophical comedy-drama film directed by Vincenzo Natali.
 It stars David Hewlett and Andrew Miller.
Cube is a 1997 Canadian science-fiction horror film directed and co-written by Vincenzo Natali.
 The film was a product of the Canadian Film Centre's First Feature Project.
 The film follows a group of people led by Quentin as they cross industrialized cube-shaped rooms, with some rigged with various traps designed to kill.
Howard Kelly "Jack" Fincher (December 6, 1930 — April 10, 2003) was a screenwriter and journalist who has written for various magazines and periodicals, notably serving as a chief editor of "Life" magazine.
 He is also the husband of Claire Mae (née Boettcher), a mental health nurse from South Dakota who worked in drug addiction programs and the father of acclaimed film director David Fincher.
 Fincher once wrote a Howard Hughes biopic before it was decided to go with John Logan's script for "The Aviator" instead.
 He also wrote The Brain Mystery of Matter and Mind (The Human Body) (Torstar Books Inc.) It is believed that Jack Fincher is the name he used for his books and that Howard Kelly Fincher is the name he was given.