Question: When did the drinking age change to 21 in the state where Lars and the Real Girl takes place?

full_context: Document 1: Alcohol laws of Wisconsin: The drinking age in Wisconsin is 21. Those under the legal drinking age may be served, possess, or consume alcohol if they are with a parent, legal guardian, or spouse who is of legal drinking age. Those age 18 - 20 may also be served, possess or consume alcohol if they are with a parent, legal guardian, or spouse who is of legal drinking age. Those age 18 to 20 may also possess (but not consume) alcohol as part of their employment.
Document 2: Lars and the Real Girl: Lars Lindstrom lives a secluded life in a small Wisconsin town. It is gradually revealed that his mother died when he was born, causing his grief - stricken father to be a distant parent to Lars and his older brother, Gus. Gus left town as soon as he could support himself, returning only to inherit his half of the household when the father died.
Document 3: Alcohol laws of New York: In response to the National Minimum Drinking Age Act in 1984, which reduced by up to 10% the federal highway funding of any state which did not have a minimum purchasing age of 21, the New York Legislature raised the drinking age from 19 to 21, effective December 1, 1985. (The drinking age had been 18 for many years before the first raise in 1982, to 19.) Persons under 21 are prohibited from purchasing alcohol or possessing alcohol with the intent to consume, unless the alcohol was given to that person by their parent or legal guardian. There is no law prohibiting where people under 21 may possess or consume alcohol that was given to them by their parents. Persons under 21 are prohibited from having a blood alcohol level of 0.02% or higher while driving.
Document 4: My Grandmother Asked Me to Tell You She's Sorry: The story takes place in Sweden and follows Elsa, a 7 year old who knows she is different from other children her age. She has a habit of correcting others' grammar, is smart for her age, and is especially close with her grandmother (Granny). When Granny passes, Elsa slowly discovers more about her grandmother's past identities, as well as the lives of people affected by her grandmother.
Document 5: Lars and the Real Girl: The film, set in the American state of Wisconsin, was filmed with a US $12 million budget on location in Alton, Elora, King Township, Toronto, Uxbridge, and Whitevale, all located in the Canadian province of Ontario. Film credits include Rosalie MacKintosh as ``Bianca wrangler ''and Karly Bowen as`` assistant Bianca wrangler.''
Document 6: Alcohol laws of New York: In response to the National Minimum Drinking Age Act in 1984, which reduced by up to 10% the federal highway funding of any state which did not have a minimum purchasing age of 21, the New York Legislature raised the drinking age from 19 to 21, effective December 1, 1985. (The drinking age had been 18 for many years before the first raise in 1984, to 19.) Persons under 21 are prohibited from purchasing alcohol or possessing alcohol with the intent to consume, unless the alcohol was given to that person by their parent or legal guardian. There is no law prohibiting where people under 21 may possess or consume alcohol that was given to them by their parents. Persons under 21 are prohibited from having a blood alcohol level of 0.02% or higher while driving.
Document 7: What's Eating Gilbert Grape: Following Arnie's 18th birthday party, Bonnie climbs the stairs to her bedroom for the first time since her husband's suicide. Arnie later tries to wake her but discovers she has died. The children, not willing to let their mother become the joke of the town by having her corpse lifted from the house by crane, empty their family home of possessions and set it on fire. A year later, Gilbert describes what happened to his family after his mother's death, as Gilbert and his brother Arnie wait by the side of a road for Becky, who arrives with her grandmother, and picks them up.
Document 8: Emil Forselius: Emil Forselius was found dead in his apartment in Stockholm on 2 March, 2010. The cause of death was suicide. He had left a farewell letter. Forselius had suffered from severe depression for some time.
Document 9: Alcohol laws of New York: In response to the National Minimum Drinking Age Act in 1984, which reduced by up to 10% the federal highway funding of any state which did not have a minimum purchasing age of 21, the New York Legislature raised the drinking age from 19 to 21, effective December 1, 1985. (The drinking age had been 18 for many years before the first raise on December 4th, 1982, to 19.) Persons under 21 are prohibited from purchasing alcohol or possessing alcohol with the intent to consume, unless the alcohol was given to that person by their parent or legal guardian. There is no law prohibiting where people under 21 may possess or consume alcohol that was given to them by their parents. Persons under 21 are prohibited from having a blood alcohol level of 0.02% or higher while driving.
Document 10: U.S. history of alcohol minimum purchase age by state: From 1976 to 1983, several states voluntarily raised their purchase ages to 19 (or, less commonly, 20 or 21), in part to combat drunk driving fatalities. In 1984, Congress passed the National Minimum Drinking Age Act, which required states to raise their ages for purchase and public possession to 21 by October 1986 or lose 10% of their federal highway funds. By mid-1988, all 50 states and the District of Columbia had raised their purchase ages to 21 (but not Puerto Rico, Guam, or the Virgin Islands, see Additional Notes below). South Dakota and Wyoming were the final two states to comply with the age 21 mandate. The current drinking age of 21 remains a point of contention among many Americans, because of it being higher than the age of majority (18 in most states) and higher than the drinking ages of most other countries. The National Minimum Drinking Age Act is also seen as a congressional sidestep of the tenth amendment. Although debates have not been highly publicized, a few states have proposed legislation to lower their drinking age, while Guam has raised its drinking age to 21 in July 2010.
Document 11: Alcohol laws of Wisconsin: The drinking age in Wisconsin is 21. Those under the legal drinking age may be served, possess, or consume alcohol if they are with a parent, legal guardian, or spouse who is of legal drinking age. Those age 18 to 20 may also possess (but not consume) alcohol as part of their employment.
Document 12: Alcohol laws of Wisconsin: The 1983 Wisconsin Act 74, effective July 1, 1984, created a drinking age of 19. Meeting in special session at the call of the governor, the legislature enacted 1985 Wisconsin Act 337, which raised the drinking age to 21 and brought the state into compliance with the NMDA (National Minimum Drinking Age) on September 1, 1986.
Document 13: O Pioneers!: "O Pioneers!" tells the story of the Bergsons, a family of Swedish-American immigrants in the farm country near the fictional town of Hanover, Nebraska, at the turn of the 20th century. The main character, Alexandra Bergson, inherits the family farmland when her father dies, and she devotes her life to making the farm a viable enterprise at a time when many other immigrant families are giving up and leaving the prairie. The novel is also concerned with two romantic relationships, one between Alexandra and family friend Carl Linstrum and the other between Alexandra's brother Emil and the married Marie Shabata.
Document 14: Lars and the Real Girl: Lars and the Real Girl is a 2007 comedy-drama film written by Nancy Oliver and directed by Craig Gillespie. It stars Ryan Gosling, Emily Mortimer, Paul Schneider, Kelli Garner, and Patricia Clarkson. The film follows Lars (Gosling), a sweet but socially awkward young man who develops a romantic yet platonic relationship with an anatomically correct sex doll, a "RealDoll" named Bianca.
Document 15: National Minimum Drinking Age Act: The National Minimum Drinking Age Act of 1984 (23 U.S.C. § 158) was passed by the United States Congress on July 17, 1984. It was a controversial bill that punished every state that allowed persons below 21 years to purchase and publicly possess alcoholic beverages by reducing its annual federal highway apportionment by 10 percent. The law was later amended, lowering the penalty to 8 percent from fiscal year 2012 and beyond.
ground_truth: September 1, 1986
sub_queries: where does lars and the real girl take place Answer: Wisconsin
when did the drinking age change to 21 in Wisconsin Answer: September 1, 1986