When Mahree gets the birthday cake in the mall, the sparkler candle goes from being out to burning again between shots. It also goes from being straight to leaning to the right to straight again.
Amanda, the secretary at the South African embassy, told Mahree she was removed from the Dellums home because of backlash fears over Steve Biko's death. This would have been a day or so after his death on 12 September 1977, yet the same day Mahree is at the embassy the TV shows Biko's funeral, which actually occurred on 25 September 1977.
Right before Mahree and the Hofmeyers drive into the protesters, a shot of the car waiting for the cue to drive in can be seen.
Piper has Lionel Richie's self-titled album in her room; it wasn't released until 1982.
Piper has The Doobie Brothers' "One Step Closer" album in her room; it wasn't released until 1980.
Throughout the film, vehicles of the 1980s and 1990s are clearly seen.
While driving through downtown D.C. a billboard in the distance has a Miller Genuine Draft sign. Miller Genuine Draft wasn't produced until 1986.
The movie is set in 1977, but its first shot shows the Washington Monument with the scaffolding used for its renovation in 2000.
Mahree lives in Dundee, South Africa, and her house is on the coast. Dundee is at least 200KM from the ocean.