Question: Who is the director of the short film based on which Australian psychological horror film The Babadook was made?

Context articles: Long Weekend (2008 film)
Red Dragon (2002 film)
Michael Kyrios
Dead Calm (film)
1408 (film)
Oculus (film)
The Babadook
The Plumber (1979 film)
Lake Mungo (film)
Jennifer Kent

Long Weekend (released on video in the U.S. as Nature's Grave) is a 2008 Australian psychological horror film and the remake of the 1978 Australian film "Long Weekend".
 It was directed by Jamie Blanks.
Red Dragon is a 2002 American psychological horror film based on the novel of the same name by Thomas Harris, featuring psychiatrist and serial killer Dr. Hannibal Lecter.
 It is a prequel to "The Silence of the Lambs" (1991) and "Hannibal" (2001).
 The novel was originally adapted into the film "Manhunter" (1986).
Michael Kyrios (born 30 December 1958) is an Australian clinical psychologist.
 A professor at the Australian National University and the director of its Research School of Psychology, he is also president of the Australian Psychological Society as of August 2016 , and a Fellow of the society.
 He previously worked at Swinburne University of Technology and the University of Melbourne.
 His research focuses on areas such as obsessive–compulsive disorder (OCD), addiction, anxiety, and depression.
Dead Calm is a 1989 Australian psychological thriller film starring Sam Neill, Nicole Kidman and Billy Zane.
 It was based on the 1963 novel of the same name by Charles Williams.
 The film was directed by Australian filmmaker Phillip Noyce and filmed around the Great Barrier Reef.
 Cinematography by Dean Semler and score composed by Graeme Revell.
1408 is a 2007 American psychological horror film based on Stephen King's 1999 short story of the same name.
 It is directed by Swedish director Mikael Håfström and stars John Cusack, Samuel L. Jackson, Mary McCormack, Tony Shalhoub, Len Cariou, Isiah Whitlock, Jr., and Jasmine Jessica Anthony.
 The film was released in the United States on June 22, 2007, although July 13 (which in 2007 fell on a Friday) is mentioned as the release date on the website.
Oculus is a 2013 American supernatural psychological horror film written, edited and directed by Mike Flanagan.
 The film had its world premiere on September 5, 2013, at the 2013 Toronto International Film Festival (TIFF) and received a wide theatrical release on April 11, 2014.
 Karen Gillan stars as a young woman who is convinced that an antique mirror is responsible for the death and misfortune that her family suffered.
 The film is based upon an earlier short film by Flanagan, "Oculus: Chapter 3 – The Man with the Plan".
The Babadook is a 2014 Australian psychological horror film written and directed by Jennifer Kent in her directorial debut, and produced by Kristina Ceyton and Kristian Moliere.
 The film stars Essie Davis, Noah Wiseman, Daniel Henshall, Hayley McElhinney, Barbara West, and Ben Winspear.
 It is based on the 2005 short film "Monster", also written and directed by Kent.
The Plumber is a 1979 Australian psychological thriller film about a psychotic plumber who befriends a woman.
 Written and directed by Peter Weir, "The Plumber" was originally made and broadcast as a television film in Australia in 1979 but was subsequently released to theaters in several countries beginning with the United States in 1981.
 The film was made shortly after Weir's critically acclaimed "Picnic at Hanging Rock" became one of the first Australian films to appeal to an international audience.
 The film stars Judy Morris, Ivar Kants, and Robert Coleby, all of them being most notable as actors in Australian soap operas.
Lake Mungo is a 2008 low budget Australian psychological horror film directed by Joel Anderson and starring Talia Zucker.
 It employs a documentary format using actors in place of interviewees to tell the story of a family trying to come terms with the drowning death of their daughter and the potentially supernatural events they experience after her death.
 The film received critical acclaim during its limited release.
Jennifer Kent is an Australian actress, writer and director, best known for her horror film "The Babadook" (2014), which was her directorial debut.
 She is currently filming her second film, "The Nightingale".