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.
Continuity mistake: Early in the film, as Jake and Charlie are towing a new weapon system to its destination on the Moon, we see Earth in the background, more than half illuminated by the Sun. Jake says they are 7 miles away and closing on their lunar destination (which should only take a matter of moments). A few moments later, as Jake and Charlie are still in approach, we see Earth in the background again, but it is now in a waning crescent, only 1/3 illuminated by the Sun. This would indicate over a week's passage of time.Charles Austin Miller