The Blues Brothers is a 1980 American musical comedy film directed by John Landis. It stars John Belushi and Dan Aykroyd as "Joliet" Jake and Elwood Blues, characters developed from "The Blues Brothers" musical sketch on the NBC variety series Saturday Night Live. The film's screenplay was written by Aykroyd and Landis. It features musical numbers by rhythm and blues (R&B), soul, and blues singers James Brown, Cab Calloway, Aretha Franklin, Ray Charles, and John Lee Hooker.

Much of the film was shot on location in and around Chicago between July and October 1979, including Wauconda, Illinois, where the car crashes into the side of Route 12. Made with the cooperation of Mayor Jane M. Byrne, it is credited for putting Chicago on the map as a venue for filmmaking. Nearly 200 movies have been filmed in Chicago. "Chicago is one of the stars of the movie. We wrote it as a tribute," Dan Aykroyd told the Chicago Sun-Times in an article written to mark the film's 25th-anniversary DVD release.  The first traffic stop was in Park Ridge, Illinois. The shopping mall car chase was filmed in the real, albeit shuttered, Dixie Square Mall, in Harvey, Illinois. The bridge jump was filmed on an actual drawbridge, the 95th Street bridge over the Calumet River, on the southeast side of Chicago. The main entrance to Wrigley Field (and its sign reading "Save lives. Drive safely, prevent fires.") makes a brief appearance when the "Illinois Nazis" visit it after Elwood falsely registers the ballpark's location, 1060 West Addison, as his home address on his driver's license. (Elwood's Illinois driver's license number is an almost-valid encoded number, with Dan Aykroyd's own birth date embedded.) Jake's final confrontation with his girlfriend was filmed in a replica of a section of the abandoned Chicago freight tunnel system. The other chase scenes included lower Wacker Drive, Lake Street, and Richard J. Daley Center.  In the final car chase scene, the production actually dropped a Ford Pinto, representing the one driven by the "Illinois Nazis", from a helicopter at an altitude of about 1,200 feet--and had to gain a Special Airworthiness Certificate from the Federal Aviation Administration to do it. The FAA was concerned that the car could prove too aerodynamic in a high-altitude drop, and pose a threat to nearby buildings. The shot leading up to the car drop, where the "Illinois Nazis" drive off a freeway ramp, was shot in Milwaukee, Wisconsin, near the Hoan Bridge on Interstate 794. The Lake Freeway (North) was a planned but not completed six-lane freeway, and I-794 contained an unfinished ramp off which the Nazis drove. Several Milwaukee skyscrapers are visible in the background as the Bluesmobile flips over, notably the U.S. Bank Center.  The Palace Hotel Ballroom, where the band performs its climactic concert, was at the time of filming a country club, but later became the South Shore Cultural Center, named after the Chicago neighborhood where it is located. The interior concert scenes were filmed in the Hollywood Palladium.  The filming in downtown Chicago was conducted on Sundays during the summer of 1979, and much of the downtown was cordoned off from the public. Costs for filming the largest scene in the city's history totaled $3.5 million. Permission was given after Belushi and Aykroyd offered to donate $50,000 to charity after filming. Although the Bluesmobile was allowed to be driven through the Daley Center lobby, special breakaway panes were temporarily substituted for the normal glass in the building. The speeding car caused $7,650 in damage to 35 granite paver stones and a bronze air grill in the building. Interior shots of the elevator, staircase, and assessor's office were all recreated in a film set for filming.

Answer the following question by taking a quote from the article: what cities was it filmed in?
Much of the film was shot on location in and around Chicago