The gun used in the assassination attempt is a Henry Survival Rifle, and is really able to be taken apart and put back together, although the stock was somewhat of a wire frame.
The setting of the film inside the UN itself was the big attraction for Sydney Pollack though he didn't like the plot in the first draft of the screenplay. This was substantially altered through rewrites.
(at around 30 mins) When Tobin was reviewing the pictures of Jean Gamba, the car in the first picture is Mercedes E-class 90; in the next, the car is a Mercedes S-class 00.
When Silvia and Philippe meet at the park bench for the first time, a strand of hair across the middle of Philippe's forehead appears and reappears between shots as they talk.
American Ambassador Davis: Let's be clear, Mr. Ambassador. The United States may not recognize the I.C.C. as a legitimate court, but we certainly do not condone the methods President Zuwanie uses against his own people.