Factual error: When the new president talks to the world on shortwave radio, some kids are adjusting a TV antenna in one shot. Shortwave radios wouldn't work with TV antennas, they use two significantly different frequencies. Shortwave is a much longer wavelength and would require larger antennas to work.manthabeat
Factual error: When David and Catherine are heading to the alien city destroyer in Umbutu, which used to be part of the Congo, they are surrounded by desert landscape similar to the southwestern US. No such landscape exits anywhere in the Congo. The country is covered in rainforests and grasslands. You can even see the Sandia Mountains which are in New Mexico in some shots.