Other mistake: In the scene where the asteroids are hitting New York, there is an exterior shot of one of them hitting the South end of Grand Central Terminal. Another shot goes by and the film cuts to the main area inside the station, which is close to where the first asteroid hit. There is not one hint of damage, or any discernible reaction from the people inside from the first impact.
Continuity mistake: When AJ bumps into Bear his shirt is very dirty on his right side, but as he runs up the stairs it is much cleaner and has a sweat mark around the neck line. Next shot on the tower and the sweat is not in the same pattern. After he slides down the cable the dirt is in a different pattern again.
Continuity mistake: During the scene where AJ is playing with cookies on Grace's stomach on the last night before the launch, the car behind them alternately appears and disappears as well as moves around. Best example - wide shot shows them well behind the car, then in a shot of Grace her head's right by the tyre.
Factual error: The idea of two spacecraft blasting off together so close to each other at the same time is a joke. One would put the other at great risk. Not only is there massive fire and heat, but the vibrations from the noise of the exhaust do great damage to the surroundings. And there is great inconsistency about just how close the two spacecraft really are. The first still shot taken in the dark has them at different towers about 150 yards apart. But, then all the men take an elevator up ONE tower and are split apart into the two groups at the top of the tower. Furthermore, the launch takes place at Kennedy Space Center Launch Complex 39: the fixed and rotating service structures built for the Space Shuttle are visible. The pads at LC 39 are 8,700 feet apart (just over 1.5 miles).
Continuity mistake: There are two crews boarding their spacecraft, called "Freedom" and "Independence." They are mounting a ramp and when on top, there is a crew member who directs the two different crews toward their ship: "Independence on the left, Freedom on the right." We even see the ships (in their initial launch phases) right next to each other - you can see one right next to the other as they launch. Then, once they're airborne, we see a long shot of the two bright engines, miles apart.
Continuity mistake: The montages around the world show a boy listening to a transistor radio. In order to make it look truly Americana the boy has an old-fashioned earphone in one ear but continues to hold the transistor radio up to his ear as though the speaker were working in addition to the headphone.
Deliberate mistake: Before the two shuttles dock to the MIR station, Lev initiates a rotation to simulate gravity. The shuttles then dock with their side hatch pointing to the anchorage. As the gravity is pointing away from the centre of revolution and the station is revolving around its main corridor, the gravity would push the astronauts back in to the shuttle and not towards the floor of the gangways leading to the shuttle or towards the floor of the shuttle. Also, the artificial gravity would be reduced to almost nothing at the main corridor. But here the artificial gravity somehow points down in every part of the station, and appears to work equally well throughout the station.
Factual error: In the scene with the "lunar roll" (where both shuttles Freedom and Independence are being sling-shot around the moon), they are said to be experiencing "9 and a half G's for 11 minutes". But during this time, the crew members are screaming at the top of their lungs at each other. Under that much pressure it would be nearly impossible to breathe, let alone scream. Even if they're wearing G-suits, with the helmets off, they would be directly exposed to the pressure.