 Some of the scenes were shot on location in Kansas City, Missouri.  During the opening credits, the Kansas City Stockyards, the Truman  Sports Complex (with the Chiefs and Royals Stadiums), the Liberty  Memorial Monument, the downtown area, and the Country Club Plaza and  surrounding neighborhoods and parks can be seen. Scenes of Jason  Robards and his daughter talking near the Liberty Memorial, glancing  over Crown Center, location shots at the Kansas City Board of Trade,  and homes in the Brookside neighborhood can all be seen in the film  prior to the attack. Hundreds of civilians can also be seen crowding  into a fallout shelter in the basement of the old Fidelity National  Bank in downtown Kansas City, just before the bombs drop. At the end  of the film, Jason Robards can be seen walking through the rubble of  the old St. Joseph Hospital, which was actually being demolished at  the time.