When the Candyman breaks the window to escape the psychiatrist's office at the hospital, there are shards of glass in the frame. In subsequent shots, when Helen, or Virginia Madsen, goes to the window, all of the glass has been cleared.
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).