History Film / Greenland

** The ending sequence shows that the comet itself slams somewhere into Western Europe (the British Isles from the looks of it), sending a gigantic shockwave rushing across the continent and towards Greenland, yet the aftermath shows Paris destroyed, but still recognizable; in reality, Paris - along with great swathes of Europe - would have quite literally been wiped off the map, leaving nothing but dust and hunks of scattered molten metal and rock.

* RecycledInSpace:
** It's ''Film/TwentyTwelve''... WITH METEORS!
** Also ''Film/DeepImpact'' without the meteor destroying plot.

* ZergRush: The rioters who break through the airbase perimeter and storm the planes use their sheer numbers to counter the military's firepower.

** Also ''Film/{{DeepImpact}}'' without the meteor destroying plot.

--> '''John:''' How would you feel if this was your family?
--> '''Officer:''' My family wasn't chosen.

* DidntSeeThatComing: Crossing with ArtisticLicenseAstronomy, Clarke is only discovered as a cluster of objects about to impact Earth right as it's arriving in the orbit and one of its pieces (the size of a stadium, mind you) obliterates Florida. Apparently nobody knew this was going to happen, including all of NASA and the people literally watching it, until it landed. The call for evacuees from Homeland Security coming immediately after this disaster is televised provides a subtle hint that the government did indeed see this coming, and was preparing. The public is caught completely by surprise, however.

* SmallRoleBigImpact: Many characters with important roles in the movie are only onscreen briefly, including another passenger on John's plane who has barely thirty seconds of screen time. He tells John that his nephew got turned away for having a health condition, causing John to realize his family isn't being evacuated and leave the plane to look for them. If not for that other passenger, John would have unknowingly left without them or died during the rioting at the airport.
* StuffBlowingUp: When rocks are falling from space and burning up in the atmosphere, ''and'' they are large enough to reach the ground, this tends to happen.

* ZergRush: The rioters who break through the airport perimeter and storm the planes use their sheer numbers to counter the military's firepower.

* AssholeVictim: [[spoiler: A bigoted man and his buddy try to steal John's wristband so that he could get on a flight to Greenland. John kills him, and the asshole's buddy doesn't try to keep fighting.]]
** [[spoiler: Ralph may qualify as well, as he's last seen being arrested by the military for kidnapping a child and posing as his father just to be given a selfish chance at survival, which means he almost certainly didn't make it to a safe location in time before the comet struck the Earth. It's unfortunate that his wife, who never agreed with his plan and was forced to go along with it, ended up collateral damage.]]
* ArtisticLicenseAstronomy: Despite being one of the more grounded space-based disaster films, there are still a few awkward points to be found:

* TheElitesJumpShip: Referenced and downplayed. When the government selects people to be evacuated to shelters before a ColonyDrop, Ralph complains that they're probably all rich people. Actually, the government is picking people based on their skills to rebuild society (and none of them have any idea the evacuation is going on until right before the cataclysm). Still, at least some of them (such as John, a building engineer with a nice house, and Colin's mother, a doctor) have jobs with upper-class incomes, which is usually the cast for high-valued jobs such as doctors and engineers.

* TheElitesJumpShip: Referenced and downplayed. When the government selects people to be evacuated to shelters before a ColonyDrop, Ralph complains that they're probably all rich people. Actually, the government is picking people based on their skills to rebuild society (and none of them have any idea the evacuation is going on until right before the cataclysm). Still, at least some of them (such as John, a building engineer with a nice house, and Colin's mother, a doctor) have jobs with upper-class incomes.

* MilitariesAreUseless: Averted. The militaries of not just the United States, but of the world do ''everything'' in their power to try and preserve humanity. They can't do anything to stop a comet cluster from striking the planet, but they [[spoiler: successfully ensure that many humans survive the calamity]].

* RelationshipSalvagingDisaster: John and Allison's marriage was on the rocks due to his cheating on her. Fortunately, they reconciled shortly before leaving for Greenland.