Knut Erik Jensen (born 8 October 1940 in Honningsvåg, Finnmark) is a Norwegian film director, best known for his documentary "Cool and Crazy".
 After studying French, Russian and history, he attended the London Film School.
 In 1978, he joined the staff of the Norwegian Broadcasting Corporation (NRK), and has since then made documentaries and short films for NRK as well as independently.
 Jensen has also directed three feature films: "Stella Polaris" (1993),"Burnt by Frost" (1997) and "Passing Darkness" (2000).
William Eubank (born November 15, 1982) is an American film director, screenwriter, and cinematographer.
 His third feature film, the estimated $65 million action thriller "Underwater", is scheduled to be released in 2018 by 20th Century Fox.
 His second feature film "The Signal" premiered at the 2014 Sundance Film Festival and was released in theaters by Focus Features on June 13, 2014.
 For his first feature film, "Love", released in 2011, in addition to directorial and director of photography duties, Eubank also served as production designer.
Jean-Yves Bigras (May 19, 1919 in Ottawa, Ontario – August 17, 1966 in Montreal, Quebec) was a Canadian film director and film editor, considered a pioneer in Quebec cinema.
 Bigras studied first at the University of Ottawa and then at Queen's University.
 From 1939 to 1942 he served in World War II as part of the RCAF.
 When he returned to Canada he became one of the first French Canadians to be hired by the NFB and worked there as an editor until 1948.
 He was then hired to work in Renaissance Éducationnel, the children's education film section of Renaissance Films Distribution.
 It was here that he got to work on his first feature film "Le gros Bill" (1949) co-directing with René Delacroix.
 Bigras moved on to direct three feature films himself, including "La petite Aurore l’enfant martyre" (1951), a big hit with audiences and a staple of Quebec Cinema.
 In 1953 he began working for Radio-Canada where he became one of its principal directors until his death in 1966.
Matthew "Matt" Porterfield (born October 6, 1977) is an American independent filmmaker.
 He has made three feature films to date, "Hamilton" (2006), "Putty Hill" (2011) and "I Used to Be Darker" (2013).
 Both "Putty Hill" and "I Used to Be Darker" had their international premieres at the Berlin International Film Festival.
 All three of his features have had their local premieres at the Maryland Film Festival.
David Frigerio is an American screenwriter.
 His 2014 film "The Signal", directed by William Eubank and starring Laurence Fishburne, Brenton Thwaites, and Olivia Cooke, premiered at the 2014 Sundance Film Festival and was released in US theaters on June 13 by Focus Features.
 In 2010, he wrote and produced "Wreckage", directed by John Asher and starring Aaron Paul, Scoot McNairy, and Cameron Richardson.
The Signal is a 2014 American science fiction thriller film directed by William Eubank and co-written with Carlyle Eubank and David Frigerio.
 The film stars Brenton Thwaites and Laurence Fishburne.
 The film premiered at the 2014 Sundance Film Festival and was released theatrically in the United States on June 13, 2014.
 The film is among an increasing number of low-budget, independent science fiction films to be included at the Sundance Film Festival in recent years.
Eduardo Rodríguez is a Venezuelan film director and screenwriter whose professional career in the United States began after Bob Weinstein, founder of Dimension Films, offered Eduardo a contract to direct three feature films in 2002.
 Details of his unusual deal were featured on the front page of "Variety" on April 17, 2002, as well in articles from "Entertainment Weekly" (May 3, 2002) and "Premiere Magazine" (August 2002).
 Eduardo was also anointed a member of "Entertainment Weekly's" 2002 "It List" of the 100 most creative people in entertainment.
Joshua Michael Stern is an American film director and screenwriter.
 He has directed three feature films: "Neverwas" (2005), "Swing Vote" (2008) and the 2013 biographical film "Jobs", based on the life of Steve Jobs.
Carlyle Eubank is an American writer and screenwriter.
 His 2014 film "The Signal", starring Laurence Fishburne, Brenton Thwaites, and Olivia Cooke, premiered at the 2014 Sundance Film Festival and was released in US theaters on June 13 by Focus Features.
Tauquir Ahmed (born 1964/1965), an architect and actor, turned director in both television and cinema.
 He has made three feature films.
 Present occupation is film making, screen writing and acting.

Question: William Eubank is a film director, screenwriter, and cinematographer who made three feature films, one of which was co-written by Carlyle Eubank and who else?
Answer: David Frigerio