Factual error: In the scene where Lovell's daughter is complaining that the Beatles have broken up, she slams the album Let It Be into her rack. The scene takes place on the day of the explosion, April 13th, 1970. Let It Be was not released until May 9th, 1970.

Factual error: During the launch sequence, all nine swingarms on the launch tower are seen retracting, one by one, as the Saturn V reaches full thrust. In real life, only five swingarms would still be attached to the rocket during this phase. These "in-flight" arms would swing away as the rocket lifted off and cleared the launcher.

Factual error: When the cabin temperature drops, an astronaut's breath is visible. His visible breath rises as he exhales. This is an effect of gravity - on earth the water vapor in breath, which is the component that becomes visible in the cold, rises because it is lighter than the surrounding air. Since the astronaut was in a "weightless" environment, his breath should have travelled in a straight path from his mouth into the surrounding atmosphere, rather than rising.

Continuity: In the part where the mission control guy is explaining how they're going to sling shot around the moon, the pictures on the chalkboard change.

Factual error: Technician John Aaron states that the damaged ship will need to use "less amps than this" as he points to a vintage 'Mr. Coffee' coffee-maker on his desk. Mr. Coffee was not introduced until 1972.

Revealing: In the final 1/2 hour there's a scene in which Kevin Bacon is drifting weightlessly in the lunar module, with a roll of duct tape floating nearby. Just during the last couple of seconds of this shot, suddenly he & the roll accelerate to the right. As everyone now knows the zero-g scenes were photographed on-board an aircraft which flies free-fall arcs for up to about 20 seconds before having to level off. The sudden acceleration on the set means that shot was filmed just as the plane was leveling off from a dive.

Continuity: When they are in orbit and Fred vomits you see Jim taking off his suit and an open hatch to the LEM which has not been docked yet. Later when preparing to jettison the LEM you see Jim closing the hatch over this tunnel.

Factual error: Near the end, from one window of the spacecraft you can see a full moon. From the other window, there is a "full Earth." If you're between the moon and the Earth, one or the other would not be full. The sun does not go between the moon and the Earth. (If it did, we would not exist.).

Factual error: When the LM separates from the CM just prior to re-entry, what you see in the film is an undocking, rather than a jettison. The difference is that in a jettison the CM's docking probe is pulled out of the CM to make way for parachute deployment, while in an undocking the probe (the triangular shaped thing pointing "forward" of the CM) is left to allow for redocking later. And in case you're wondering how the astronauts transferred between the two while docked with the probe in place, the answer is that they didn't - they dismantled it to create the tunnel. As an interesting aside, in real life the CAPCOM (I think it was Joe Kerwin) gave a go for "undocking" then corrected himself moments later using the phrase "..correction, GO for jettison...)

Deliberate "mistake": Near the end of the movie, there is a shot of the "Iwo Jima" with the two recovery helicopters taking off. For a moment, you can see the number 11 on the inboard side of the ship's island, which identifies it as the USS New Orleans (LPH-11), a sister of the Iwo Jima. Admittedly, it was the best the producers could do, since by the time the movie was made, the Iwo Jima (LPH-2) had been decommissioned.

Continuity: When the Astronauts are in space and are taking their equipment off, look at Kevin Bacon's hands. The gloves he wears under the Space gloves are taken off and the next scene shows him with them on.

Factual error: The paint scheme shown on the Apollo 13 rocket is incorrect: The paint scheme shown in the movie is what was used on the development versions of the Saturn 1-B first stage, and featured a large black band around the middle. Technicians found it much too hot to work inside the pre-launch first stage from the heat generated from this paint scheme. Subsequently, the paint scheme was much simplified to a near all-white version for the first stage beginning with Apollo 11. All subsequent ship-stacks (including Apollo 13) featured this newer paint scheme.

Factual error: The initial smoke shown coming out of the rocket gimbals during 'ignition sequence start' is not nearly fast or 'enthusiastic' enough. Additionally, there was in fact only a very tiny amount of white smoke/vapor emitted, and it almost instantly developed into a fiery, violent semi-transparent rocket plume. There is just way too much white vapor for too long a period shown in the film.

Factual error: Moments before and during the lift-off of the Saturn V, Ken Mattingly is shown to be watching from a somewhat private grassy field. Wherever he is supposed to be, he is far too close to the launch pad. No unauthorized persons were allowed to be that close, and certainly not in an undisclosed and unsupervised area, not the least of which was for security reasons. The fact that Mattingly is an astronaut would not give him carte blanch to do this, and his training and discipline would prevent his ever attempting doing so in the first place.

Factual error: The astronauts are shown taking their suits off before docking, but in real life they were not allowed to do this, in case of sudden cabin depressurization.

Visible crew/equipment: Immediately after the accident, when Swigert is struggling to close the hatch, as he pulls the hatch away, just before he says that he can't get it to seal, a camera is briefly visible sitting in the tunnel through to the LEM.

Factual error: When the astronauts pose for their photo shoot, the flag behind them has only 48 stars (a bit hard to tell, since it's rolled up, but the stars are arranged in straight rows parallel to the stripes, which was the arrangement used on the 48-star flag). It's 1970, so it should be a 50-star flag.

Factual error: The NASA "worm" logo shown in the film was not created until 1975.

Factual error: When Ken Mattingly is drinking from beverage cans, the cans are of a "necked" design (where the diameter of the top is less than that of the main body of the can). Necked cans were not actually produced until the 1990's.

Continuity: After Houston reacquires contact with the spacecraft following re-entry, Gene Kranz sits down in his chair, obviously full of emotion. The camera then cuts to a wide shot of Mission Control before panning in on Ken Mattingly. Before the camera zeroes in on Ken, watch the top left corner of the screen and you can see Gene sit down again.