Deliberate mistake: The slow rate of the radio telescopes at the VLA has been greatly increased for the movie. They are actually quite slow and make little to no noise.
Factual error: In the zoom-out at the very beginning, we hear broadcasts going back in time as we zoom out through the solar system. However, we hear broadcasts going back through time roughly 40 years. Shouldn't we be 40 lightyears out from Earth to hear them, rather than just in the Oort Cloud beyond Pluto? Radio waves travel at the speed of light like any electromagnetic wave. EM waves should not be confused with sound waves, which move much slower than the speed of light.
Panel member: If you were to meet these Vegans, and were permitted only one question to ask of them, what would it be?
Ellie Arroway: Well, I suppose it would be, how did you do it? How did you evolve, how did you survive this technological adolescence without destroying yourself?
Question: In the few seconds (Earth time) it took for the pod to fall through the time travel device, it would have been impossible for Ellie to have become detached from the safety seat. It would have been even less possible for the seat to have become dislodged from the pod, AND for the seat to smash against the side of the pod with sufficient force crush it. I understand there was a cover-up (e.g., the 18 hours of static on her recording device), but Ellie, herself, would have remembered the dislodged, smashed seat. Why did she never bring it up in defense of her version of the facts? Was there a reason someone knows of, or is this just a plot hole?
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