Sam Mercer is a producer of many Hollywood films, including several projects directed by M. Night Shyamalan such as "Signs", "Lady in the Water" and "Unbreakable", as well as other films like "Van Helsing" and "Things We Lost in the Fire".
 His career started during the early 1980s as a location manager and later advanced to a producer and executive producer.
 He also produced the M. Night Shyamalan films "The Happening" and "The Last Airbender".
The Sixth Sense is a 1999 American supernatural horror-thriller film written and directed by M. Night Shyamalan.
 The film tells the story of Cole Sear (Haley Joel Osment), a troubled, isolated boy who is able to see and talk to the dead, and an equally troubled child psychologist named Malcolm Crowe (Bruce Willis) who tries to help him.
 The film established Shyamalan as a writer and director, and introduced the cinema public to his traits, most notably his affinity for surprise endings.
Blinding Edge Pictures is an American film production company, founded in 2000 by M. Night Shyamalan, which is known for producing films written and directed by Shyamalan like "Unbreakable" (2000), "Signs" (2002), "The Village" (2004), "The Happening" (2008), "After Earth" (2013), "The Visit" (2015) and "Split" (2017).
 In 2015, the company released its first television series "Wayward Pines".
Signs is a 2002 American science fiction horror film written and directed by M. Night Shyamalan and executive produced by Shyamalan, Frank Marshall, Kathleen Kennedy and Sam Mercer.
 A joint collective effort to commit to the film's production was made by Blinding Edge Pictures and The Kennedy/Marshall Company.
 It was commercially distributed by Touchstone Pictures theatrically, and by Touchstone Home Entertainment in home media format.
 Its story focuses on a former Episcopal priest named Graham Hess, played by Mel Gibson, who discovers a series of crop circles in his cornfield.
 Hess slowly discovers that the phenomena are a result of extraterrestrial life.
 It also stars Joaquin Phoenix, Rory Culkin, and Abigail Breslin.
 "Signs" explores faith, kinship, and extraterrestrials.
The Village is a 2004 American psychological horror film, written, produced, and directed by M. Night Shyamalan, and starring Joaquin Phoenix, Adrien Brody, Bryce Dallas Howard, William Hurt, Sigourney Weaver, and Brendan Gleeson.
 The film is about a village whose inhabitants live in fear of creatures inhabiting the woods beyond it referred to as "Those We Don't Speak Of."
 Like other films written and directed by Shyamalan from the same time period, "The Village" has a twist ending.
The Mutual Broadcasting System (commonly referred to simply as Mutual; sometimes referred to as MBS, Mutual Radio or the Mutual Radio Network; corporate name Mutual Broadcasting System, Inc.) was an American radio network in operation from 1934 to 1999.
 In the golden age of U.S. radio drama, Mutual was best known as the original network home of "The Lone Ranger" and "The Adventures of Superman" and as the long-time radio residence of "The Shadow".
 For many years, it was a national broadcaster for Major League Baseball (including the All-Star Game and World Series), the National Football League, and Notre Dame football.
 From the mid-1930s and until the demise of the network, Mutual ran a highly respected news service accompanied by a variety of popular commentary shows.
 During the 1970s, Mutual pioneered the nationwide late night call-in radio show and introduced the country to Larry King.
Gordon Douglas (December 15, 1907 – September 29, 1993) was an American film director, who directed many different genres of films over the course of a five-decade career in motion pictures.
 He was a native of New York City.
A Night of Adventure is a 1944 American crime mystery film directed by Gordon Douglas.
 It stars Tom Conway, Audrey Long, and Edward Brophy.
Manoj Nelliyattu "M. Night" Shyamalan ( ; ; "Maṉōj Nelliyāṭṭu Śyāmaḷaṉ"; Tamil: மனோஜ் நெல்லியட்டு ஷியாமளன் ; Malayalam: മനോജ് നെല്ലിയാട്ട് ശ്യാമളന്‍ born 6 August 1970) is an Indian American film director, screenwriter, author, producer, and actor known for making movies with contemporary supernatural plots and surprise endings.
 His most well-received films include the supernatural horror thriller "The Sixth Sense" (1999), the superhero drama thriller "Unbreakable" (2000), and the science fiction thriller "Signs" (2002).
 Afterwards, Shyamalan released a series of poorly received but sometimes financially successful movies, including the historical drama-horror film "The Village" (2004), the fantasy film "Lady in the Water" (2006), the disaster film "The Happening" (2008), the film adaptation of "The Last Airbender" (2010), and the science-fiction film "After Earth" (2013).
 Following the financial failure of "After Earth," Shyalaman's career was revived with the release of the found footage horror "The Visit" (2015) and the psychological horror "Split" (2016), the latter of which is set in the same universe as his previous film "Unbreakable".
 He is also known for producing "Devil" (2010), as well as being instrumental in the creation of the Fox science fiction series "Wayward Pines.
Devil (also known as The Night Chronicles: Devil) is a 2010 American supernatural horror film directed by John Erick Dowdle.
 The screenplay by Brian Nelson was from a story by M. Night Shyamalan.
 The film stars Chris Messina, Logan Marshall-Green, Geoffrey Arend, Bojana Novakovic, Jenny O'Hara, and Bokeem Woodbine.
 "Devil" was released on September 17, 2010.
 Critics praised the film's atmosphere and performances, but criticized the short running-time and convoluted story.

Question: Gordon Douglas and M. Night Shyamalan, are American that have which mutual occupation?
Answer: film director