The movie was shot in a group of provincial government buildings in Toronto, Ontario. Adjacent to filming, is a hospital. On at least one occasion, filming blocked off access to the Emergency Room of the real hospital.
The scene where George W. Bush is speaking about health care while John and Denise are watching television, was also shot with footage of Al Gore, because the election winner had not yet been declared at the time of shooting.
During the first scene, the make of the truck that hit the woman's car, and killed her afterwards, is "Mack". This can be seen on the front of the truck, and after that throughout the whole movie, Denzel wears a "Mack" cap on many occasions.