Factual error: After the Missouri knocks the shield down, the admiral orders all aircraft launched, but the flight deck is shown in sailing transport mode, not flight readiness. Would have taken an hour or more to clear the deck and launch.Blooddog35
Factual error: Hopper has the rank of Lieutenant when he is promoted to Lieutenant Commander at the end of the movie. Promotion to Lieutenant Commander can only be achieved after minimum 9 years of service as a officer and 3 years as a Lieutenant described in US Department of Defense DOPMA act from 1980. However Hopper was a civilian 6 years before the action took place and he has the "Enlisted Surface Warfare" badge that shows that he has been an enlisted and probably gone to OCS (Officer Candiate School) at some time to become a officer and given navy regulations he has likely just been promoted to Lieutenant and likely has been a officer for about 4-5 years. There is now way he can be promotet to Lieutenant Commander under military and DOD regulations since he barely can be a Lieutenant.
Character mistake: When Hopper is being chased by the alien and he goes on deck, Rihanna goes into the control room and aims the cannon at the alien's head. Just before she fires she says "Mahalo" which is thanks in Hawaiian. It would have been better to say "Aloha", which is Hawaiian for hello and goodbye, just before she fires the cannon.starmaster100
Continuity mistake: In the scene on the mountain where the Hawaii police ask Mick and Sam to leave the mountain. Mick and Sam ask why and they are told during the conversation that the aliens have blocked all cell phones, radio and internet but in the next scene with the police they use a radio to communicate with each other.
Factual error: Towards the end of the movie, an Australian F/A-18E Superhornet is shown destroying the aliens, complete with Australian pilot. Firstly, the Ensign displayed on his helmet is incorrect. Australia doesn't operate any of those aircraft, only 2 seat F/A-18F and older F/A-18A Classic Hornets.