Trivia: Part of the film was actually shot at the infamous Cabrini-Green housing projects. The crew had to pay off members of local street-gangs in order to maintain a peaceful shoot. (Although allegedly, one bullet was fired at a production vehicle during photography).
Trivia: Screenwriter Aaron Sorkin has a cameo as a lawyer in a bar talking to a woman about one of his cases.
Trivia: Director Paul Verhoeven approached Peter Weller for the role of Nick Curran but the producers opted for Michael Douglas instead.
Trivia: The jacket that Robert Redford wears for most of the film is the exact same jacket he wears in "The Natural" - he got to keep it after filming had finished, and wore it for this film as well.
Trivia: Dale Cooper's role was originally larger than it appeared in the final film. Kyle MacLachlan had originally declined to appear, for fear of being typecast. To compensate, his role was downgraded to a minor cameo, and a new character was created to fill the role of lead investigator.