Question: Arena is a documentary series that has aired a show chronicling which Canadian filmmaker?
Context: Jason Margolis is a Canadian filmmaker and writer.  He is supervising producer and writer on "The Electric Playground", a tech and entertainment series seen on television in Canada, United States and Australia.  His directing work includes the television series "Tube Tales: TV's Real Stories", the documentary "Ayaa: A Hero's Journey" and the feature film "Lucky Stars".  He won the National Screen Institute's Totally Television award for creating the comedy series Uncorked with filmmaker Rob Wenzek and the BC Film Kickstart Award for his short film After Shock.  His screenplay The Great One (formerly titled 99), co-authored with Todd Babiak, won a Praxis Screenwriting Fellowship.  His motion picture editing work includes the documentaries Inside Boystown and K-9 Corrections, several television series, and the feature film "Crossing".  As an instructor, Jason taught writing and directing at Vancouver Film School, and as a journalist, his work has appeared in Vancouver Magazine and Vue Weekly. Peter Von Puttkamer (born April 8, 1962) is a Canadian filmmaker known for his unique approach to adventure documentary series for network television, and for his work with Indigenous communities in his country and around the world.  He has won major international awards for his work as a writer, director and producer, and was recently nominated for the 2015 Environmental Media Awards for his Nat Geo series, Biggest & Baddest, which he directed and co-produced with his wife and business partner, Sheera Von Puttkamer.  For over thirty years, the couple has run Gryphon Productions and has a catalog that includes hundreds of finished films and videos, many that have appeared on television and cable networks globally and continue to be used in classrooms and outreach centers as educational and advocacy videos. Ryan Mullins (born 1981) is a Montreal-based Canadian film director, cinematographer and editor.  He is part of the Montreal-based Canadian film production company, EyeSteelFilm.  His directing credits include the documentary short "Volta", and the feature documentary "The Frog Princes".  The film won a Golden Sheaf at the 2012 Yorkton Film Festival, and was also awarded the NFB Kathleen Shannon Award for a documentary film that "allows people outside the dominant culture to speak for themselves".  At the 2015 Hot Docs film festival in Toronto, Mullins won the Emerging Canadian Filmmaker Award for "Chameleon". Pepita Ferrari is a Canadian filmmaker.  In 1994 she began her long-standing relationship with the National Film Board of Canada, who have produced seven of her films, five of which are available to stream online in both English and French.  Her directorial debut "By Woman's Hand" was a documentary about the Beaver Hall Group, a group of Canadian women painters, who were associated with the Group of Seven.  Ferrari focused on the three most prominent artists from the group: Prudence Heward, Sarah Robertson and Anne Savage.  Her 2010 documentary "" features well-known living documentary filmmakers such as Nick Broomfield, Werner Herzog, Kim Longinotto and Errol Morris watching their own films and discussing the technical and ethical choices that guided their work.  The film sets out to answer the question - “What is documentary?”  - by taking the viewer through the process of creating a documentary from initial idea to final edit.  Since 2009, Ferrari has also written for "Point of View", a Canadian magazine about documentary and independent film, published by the Documentary Organization of Canada. Patty Kim is a Canadian filmmaker and co-founder of Safari Media.  She co-directed the 2006 award-winning feature documentary "", produced in association with the BBC, and executive-produced by Jane Campion.  The film was honored with an Alfred I. Du Pont Award, one of the highest honors in American broadcast journalism.  She also directed and produced a 2004 documentary "Destiny" for the National Geographic Channel.  Patty is consulting producer of the feature documentary "Give Up Tomorrow" which took home top prizes at the 2011 Tribeca Film Festival.  She has worked as a journalist with the National Geographic Channel, [National Geographic Television], Canadian Broadcasting Corporation and the Discovery Channel. The House of Venus Show is a Canadian LGBT sketch comedy television show created by Canadian filmmaker Mark Kenneth Woods and co-produced by Michael Venus.  The first season aired on the Canadian LGBT channel OutTV in July 2005.  The second season began airing in September, 2006 and, after a hiatus, a third season debuted in July, 2009. Jesse Gregory James (born April 19, 1969) is an American television personality and former CEO of Austin, Texas-based Austin Speed Shop.  James was the host of the reality TV shows "Jesse James Is a Dead Man" on Spike TV and "Monster Garage" on the Discovery Channel, and the focus of the documentary "Motorcycle Mania", also on Discovery.  Jesse James also appeared in the "Tony Hawk's Underground 2" video game, and was the focus of a show chronicling some of the custom builds at Austin Speed Shop in his TV series, "Jesse James: Outlaw Garage", which ran a shortened single season in 2012 on the Discovery Channel before being canceled. Tess Girard is a Canadian filmmaker and cinematographer most known for her documentary "A Simple Rhythm" a documentary exploring rhythm from the perspective of mathematics, music, biology, philosophy, and psychology, which included interviews with Charles Spearin (of Broken Social Scene, Do Make Say Think, The Happiness Project), and mathematician Steven Strogatz.  The film played at the 2011 Hot Docs Canadian International Documentary Festival, Vancouver International Film Festival 2010, 2011 Rencontres internationales du documentaire de Montréal and 2011 Buenos Aires International Festival of Independent Cinema.  The outtakes of A Simple Rhythm were edited into the radio documentary "The Heart of the Beat" for CBC's Ideas and included additional material with science writer Philip Ball. Arena is a British television documentary series, made and broadcast by the BBC since 1 October 1975.  Voted by TV executives in "Broadcast" magazine as one of the top 50 most influential programmes of all time, it has produced over six hundred episodes directed by, among others, Frederick Baker, Jana Boková, Jonathan Demme, Nigel Finch, Mary Harron, Vikram Jayanti, Vivian Kubrick, Paul Lee, Adam Low, James Marsh, Leslie Megahey, Volker Schlondorff, Martin Scorsese, Julian Temple, Anthony Wall, Leslie Woodhead, and Alan Yentob. Mary Harron (born January 12, 1953) is a Canadian filmmaker and screenwriter best known for her socially-conscious independent films like "I Shot Andy Warhol", "American Psycho" and "The Notorious Bettie Page".
Answer: Mary Harron