Filmed at the now closed and historic Joliet Correctional Center in Joliet, Illinois - the same prison where the opening sequences of The Blues Brothers (1980) were shot.
In a poor attempt to keep a low profile, John Lyshitski (Dax Shepard's character) appears disguised with suspicious looking outfits such as the Unabomber and Travis Bickle (from Taxi Driver).
During the bar scene, the paper John's reading which has the story about Judge Biederman's memorial, says attendees will include; 'State Supreme Court Justices John Paino, Ron Coy and Diana Stoughton.' All 3 - who are not justices, are, in fact people involved with the making of this film (specifically the art department and set decoration).
During the bar scene, the paper John is reading shows a headline about Lockport High overcrowding. The school is in fact, Lockport Township High School of Lockport Illinois and is actually facing alarming overcrowding at both east and central campuses. A referendum has been proposed and rejected twice by the taxpayers to build a third campus in Homer glen, forcing the school to construct trailers and go to split-shift schedules.