question: Where does the director of film Six Figures (Film) work at?
context: [["Ian Barry (director)", ["Ian Barry is an Australian director of film and TV."]], ["Jeffrey Falcon", ["Jeffrey Falcon( born January 1, 1962) is an American actor appearing in martial arts films.", "His most notable starring role was in the film\" Six- String Samurai\"."]], ["Brian Kennedy (gallery director)", ["Brian Patrick Kennedy( born 5 November 1961) is an Irish- born art museum director who has worked in Ireland and Australia, and now lives and works in the United States.", "He is currently the director of the Peabody Essex Museum.", "He was the director of the Toledo Museum of Art in Ohio from 2010 to 2019.", "He was the director of the Hood Museum of Art from 2005 to 2010, and the National Gallery of Australia( Canberra) from 1997- 2004."]], ["Six Figures (film)", ["Six Figures is a Canadian psychological thriller film, directed by David Christensen and released in 2005.", "An adaptation of the novel of the same name by Fred Leebron, the film stars JR Bourne as Warner Lutz, a man struggling with the stresses and frustrations of trying to maintain his upwardly mobile executive lifestyle who becomes the primary suspect when his wife Claire (Caroline Cave) is left comatose by a violent physical attack.", "The film was Christensen's narrative feature debut following his prior work as a documentary filmmaker, and incorporated some documentary-style filmmaking techniques.", "The film received a Genie Award nomination for Best Adapted Screenplay at the 26th Genie Awards, and was a finalist for the Rogers Best Canadian Film Award at the Toronto Film Critics Association Awards 2006."]], ["Lance Mungia", ["Lance Mungia( born 1972) is an American screenwriter and film director of the film\" Six String Samurai\" and co-writer/ director of for Dimension Films.", "Mungia also wrote and directed the short film\" Garden for Rio\", produced at Loyola Marymount University, where he attended as a film student."]], ["Jason Moore (director)", ["Jason Moore( born October 22, 1970) is an American director of film, theatre and television."]], ["Peter Levin", ["Peter Levin is an American director of film, television and theatre."]], ["David Christensen", ["David Christensen is an Alberta film director and producer who since October 2007 has been an executive producer with the National Film Board of Canada (NFB) at its Northwest Centre, based in Edmonton."]], ["Dana Blankstein", ["Dana Blankstein- Cohen( born March 3, 1981) is the director of the Israeli Academy of Film and Television.", "She is a film director, and an Israeli culture entrepreneur."]], ["Olav Aaraas", ["Olav Aaraas( born 10 July 1950) is a Norwegian historian and museum director.", "He was born in Fredrikstad.", "From 1982 to 1993 he was the director of Sogn Folk Museum, from 1993 to 2010 he was the director of Maihaugen and from 2001 he has been the director of the Norwegian Museum of Cultural History.", "In 2010 he was decorated with the Royal Norwegian Order of St. Olav."]]]
supporting_facts: [["Six Figures (film)", 0], ["David Christensen", 0]]
evidences: [["Six Figures", "director", "David Christensen"], ["David Christensen", "employer", "National Film Board of Canada"]]
answer: National Film Board of Canada