(at around 1h 55 mins) When the children run beside Amin's car and wave to Garrigan, thinking the president is inside the car, a digital wristwatch is visible at one child's arm, especially in the slow motion at the end of the film.
(at around 51 mins) When the President and the Doctor travel to Entebbe airport in the soft-top Mercedes and are ambushed - two white Bedford trucks block them to the front and the rear. The trucks are AWD Bedford's with a silver AWD logo mounted on the front. AWD took over Bedford trucks only in 1989 some 10-years after Amin was removed from Uganda (in 1979)
(at around 1h 40 mins) The Southern Comfort bottle shown in the Duty Free shop in the airport is of the 21st century 70 proof blend; a bottle from this time period would have been 76 proof with a different label.
According to the closing sequences, only one hostage was killed during the rescue operation at Entebbe Airport. Actually, three of the hostages were killed during the raid - Jean-Jacques Maimoni, Pasko Cohen and Ida Borochovitch. Fourth hostage, Dora Bloch, was later killed by Ugandan army officers at the Mulago Hospital in Kampala.
(at around 1h 50 mins) At Entebbe Airport, there is a long line of African flags running alongside the terminal between it and the runway. It is visible in a number of shots. Among the flags we can clearly see the flag of the rebel Republic of Rhodesia (now Zimbabwe), which neither Uganda, nor any other country, recognized.
Idi Amin held the rank of General until 1975, then promoted himself to Field Marshal. Throughout the movie, he wears insignia of both these ranks at differing times, making it appear that he continually switched between them. On the 'working' uniform, he always appears as a General (crossed swords, pip and coat of arms) where as in the 'dress' uniform he always appears as a Field Marshal (crossed sword and baton enclosed in oak leaves)