The Green Inferno is a 2013 American adventure horror film directed by Eli Roth.
 The film was inspired by and is a homage to Italian cannibal films of the late 1970s and early '80s "cannibal boom", including "Cannibal Holocaust" (1980), which features a film-within-a-film titled "The Green Inferno".
 The film follows a group of activists who are forced to fight for survival when they are captured by a cannibalistic tribe.
Anacondas: The Hunt for the Blood Orchid (also known as Anaconda 2 or Anacondas) is a 2004 adventure horror film directed by Dwight H. Little and the stand-alone sequel to the 1997 film "Anaconda".
 It is the second installment of the "Anaconda" film series and the last film in the series to be released theatrically.
 The film follows a team of researchers set for an expedition into the Southeast Asian tropical island of Borneo, which comprises territories belonging to three countries, to search for a sacred flower, for which they believe will bring humans to a longer and healthier life, but soon become stalked and hunted by the deadly anacondas inhabiting the island.
 The origin of the giant anaconda from the original film is also explained.
Anaconda is a 1997 adventure horror film by Peruvian director Luis Llosa, starring Jennifer Lopez, Ice Cube, Jon Voight, Eric Stoltz, Jonathan Hyde and Owen Wilson.
 It centers on a documentary film crew who have been taken hostage by a snake hunter who is going after the legendary giant anaconda, which is discovered in the Amazon rainforest.
Dreamscape is a 1984 American science-fiction adventure horror film directed by Joseph Ruben and written by David Loughery, with Chuck Russell and Ruben co-writing.
The Descent Part 2 is a 2009 British adventure horror film and sequel to the 2005 horror film "The Descent".
 It was directed by Jon Harris from a screenplay by James McCarthy, J Blakeson, and James Watkins.
 The film was produced by Christian Colson and Ivana MacKinnon; Neil Marshall, the writer and director of the original, was an executive producer.
 Shot in London and Surrey, it was released in cinemas in the UK on 2 December 2009 and on DVD on 27 April 2010 in the U.S.
Orca (also known as Orca: The Killer Whale) is a 1977 American adventure horror film directed by Michael Anderson and produced by Dino De Laurentiis, starring Richard Harris, Charlotte Rampling, and Will Sampson.
 It is based on Arthur Herzog's novel of the same name.
 The film follows a male orca whale tracking down and getting revenge on a captain for killing the whale's pregnant mate.
Firegate is an Indonesian adventure horror film about a mysterious pyramid in Gunung Padang.
 The film was produced and written by Robert Ronny and directed by Rizal Mantovani.
The Untold is a 2002 adventure horror film independently produced in Canada written and directed by Jonas Quastel.
 The SyFy Channel airs it under the title "Sasquatch", which is also the title of the English version of the Canadian DVD release.
 And is also known as "Inexplicable" under the French version.
 The film is known under several different titles depending on the date and location of its release.
 It was first released in France at the Cannes Film Festival in May 2002.
 It was released on March 11, 2003 in Canada and the United States.
Jon Harris (born 11 July 1967) is a film editor known for his work on "Snatch" (2000), "Layer Cake" (2004), "The Descent" (2005), "Stardust" (2007), "Kick-Ass" (2010), "127 Hours" (2010), "The Woman In Black" (2012), and "" (2015).
The Descent is a 2005 British adventure horror film written and directed by Neil Marshall.
 The film follows six women who, having entered an unmapped cave system, become trapped and are hunted by flesh-eating subterranean humanoids.

Question: Jon Harris is a film editor who worked on a 2005 British adventure horror film that was written and directed by who?
Answer: Neil Marshall