Revealing mistake: When Ben Affleck riddles the shuttle's fuselage with the bullets from armadillo's gatling and then rams it to get outside, it can be seen that the side wall of the ship is paper thin. Now, I know titanium is a sturdy stuff but don't believe such a flimsy construction would be enough to stand the ordeal of a space flight with gravity loads during the start, escaping/entering the atmosphere and pressure difference in the vacuum of space.
Continuity mistake: When the team meets the flight crews for the shuttles, there are two munitions specialists - Gruber and another astronaut. We see this other astronaut board the shuttle, then he's never seen again, not even his body.
Factual error: In the Paris meteor scene, the POV is from the walkway of Notre Dame cathedral, with a very famous gargoyle in the RH side of the frame. From that POV, the Eiffel tower is visible, but the L'Hôtel national des Invalides (Napoleon's Tomb, the gold-domed building in the foreground) is in the wrong location. To show both of those structures in those positions, Notre Dame would have be located about a mile southwest of its actual location.taylorgtr
Deliberate mistake: When the bomb is going to be remote detonated, on the inside lid of the briefcase, the remote destruct warning says that upon activation, the warhead will detonate in T minus 10 minutes. When the countdown begins on the bomb however, it is only for 6 minutes.
Factual error: Earlier in the film the mission coordinator says that they are going to experience 9.5G's for 11 min. Untrained astronauts would not be able to even maintain consciousness, let alone be talking and yelling as they do in this scene. (01:22:00 - 01:24:00)
Audio problem: When the Russian space station is on fire, and the crews are running out, you can hear Harry say, "Where's the rest of the team?" but his lips don't move.
Character mistake: During the scene when AJ is yelling out for any other survivors in his crashed shuttle, we hear Lev calling "A.J.", but with no Russian accent. Then Lev gets his accent back when he says "I'm here." (01:28:10)
Revealing mistake: When AJ drives through the wall in the spaceship wreckage, the material flaps about in a very un-metallic way.
Continuity mistake: When Grace throws down Thurman because of frustration, she first grabs him by the back, but in the next shot he's facing upwards. (01:55:25)