Question: Canada '67 is a documentary of the most populous municipality in what province?

Context paragraphs:
Pekin, Illinois: Pekin is a city in and the county seat of Tazewell County in the U.S. state of Illinois.  Located on the Illinois River, Pekin is the largest city of Tazewell County and the second most populous municipality of the Peoria metropolitan area, after Peoria itself.  As of the 2010 census, its population is 34,094.  A small portion of the city limits extend into Peoria County.  Pekin is the 13th-most populous city in Illinois outside of the Chicago Metropolitan Area.  It is the most populous municipality in the United States with the name Pekin.

Boulder, Colorado: Boulder ( ) is the home rule municipality that is the county seat and the most populous municipality of Boulder County, and the 11th most populous municipality in the U.S. state of Colorado.  Boulder is located at the base of the foothills of the Rocky Mountains at an elevation of 5430 ft above sea level.  The city is 25 mi northwest of Denver.

Telephone Pavilion (Expo 67): The Telephone Pavilion, also known as the Bell Telephone Pavilion and formally named the Telephone Association of Canada Pavilion, was a part of Expo 67, an International World's Fair held in Montreal, Quebec, Canada in 1967 to mark the centenary of the Confederation of Canada.  The pavilion was built to promote Canadian telephone companies and their services.  The pavilion's feature attraction was Canada '67, a documentary film by The Walt Disney Company.  The movie was presented in Circle-Vision 360° to audiences of 1,200–1,500 people every 30 minutes.

Canada '67: Canada '67 is a Circle-Vision 360° documentary film by Canadian film director Robert Barclay, which was presented at the Telephone Pavilion, (formally named the Telephone Association of Canada Pavilion), part of Expo 67, an International World's Fair held in Montreal, Quebec, Canada in 1967 to mark the centenary of the Confederation of Canada.

Richmond Hill, Ontario: Richmond Hill (2016 population 195,022) is a town in south-central York Region, Ontario, Canada.  Part of the Greater Toronto Area, it is the York Region's third most populous municipality and the 28th most populous municipality in Canada.  It is also Canada's most populous town.

Colchester, Vermont: Colchester is a town in Chittenden County, Vermont, United States.  The population was 17,067 as of the 2010 census.  It is the fourth-most populous municipality and second-most populous town in the state of Vermont.  Colchester is a suburb of Burlington–Vermont's most populous municipality.  The town is directly to Burlington's north on the eastern shore of Lake Champlain to the west of the Green Mountains.  The Vermont National Guard is based in the town, and it is also home to the campus of Saint Michael's College.

Autumn '67 – Spring '68: Autumn '67 – Spring '68 is a 1972 compilation by the English psychedelic rock and progressive rock group the Nice.  It was released in 1973 in US as "Autumn to Spring".  The album consists of outtakes and alternate versions recorded in Autumn '67 – Spring '68.  The album has been reissued on vinyl as "The Nice Featuring America".  The album was remastered and reissued on Japanese SHM-CD in 2009.  All of these tracks were also included as bonus tracks on 1990 reissues of the Nice's "Five Bridges" and "Elegy" albums.

Revolution '67: Revolution '67 is a 2007 documentary film about the black riots of the 1960s.  With the philosophy of nonviolence giving way to the Black Power Movement, race riots were breaking out in Jersey City, Harlem, and Watts, Los Angeles.  In 1967, black Newark taxi driver John Smith was arrested for a traffic violation and allegedly beaten and killed.  "Revolution '67" details Newark's reaction to the incident.

Grand Junction, Colorado: The city of Grand Junction is the home rule municipality that is the county seat and the most populous municipality of Mesa County, Colorado, United States.  The city has a council–manager form of government, and is the most populous municipality in all of western Colorado.  Grand Junction is situated 247 mi west-southwest of the Colorado State Capitol in Denver.  As of the 2010 census, the population of the city was 58,566.  Grand Junction is the 15th most populous city in the state of Colorado and the most populous city on the Colorado Western Slope.  Grand Junction serves as a major commercial and transportation hub within the large area between the Green River and the Continental Divide.  It is the principal city of the Grand Junction Metropolitan Statistical Area which had a population of 146,723 in 2010 census.

Montreal: Montreal ( ; ] ; officially Montréal) is the most populous municipality in the province of Quebec and the second-most populous in Canada.  Originally called "Ville-Marie", or "City of Mary", it is named after Mount Royal, the triple-peaked hill in the heart of the city.  The city is on the Island of Montreal, which took its name from the same source as the city, and a few much smaller peripheral islands, the largest of which is Île Bizard.  It has a distinct four-season continental climate with warm to hot summers and cold snowy winters.

Supporting paragraphs: Canada '67 Montreal
Answer: Quebec