Corrected entry: Zira puts the blocks together to form the stairs that will allow her to get the banana, but only stares at it. When the female scientist asks why she won't eat it, Zira says she loathes bananas. Bananas grow in tropical climates near the equator. New York City, where she lived in the future, is in a subtropical climate zone, and not grown there. How would she loathe bananas if she's never eaten one before?
Corrected entry: When Zira is being interrogated, she says that the planet was destroyed in 3950 or something. The interrogator, later tells the President that the Earth was destroyed in 3955. In the original Planet Of The Apes, the ships display at the beginning of the movie shows that Taylor and his men crash landed in the year 3978. This would have been over 20 years later. Yet the planet was blown up in Beneath The Planet of the Apes at the end of the movie. So the timeline is impossible. (00:43:25)
Correction: Now although, the chronometer on Taylor's ship said it crash landed on Earth in 3978, it was stated on one of the corrections in the corrections page from the original Planet of the Apes movie that the chronometer could have easily malfunctioned and got the wrong date as the stasis tubes were also malfunctioning. Planet of the Apes and Beneath the Planet of the Apes both did in fact take place in 3955. When Cornelius, Zira and Milo rebuilt Taylor's ship, the chronometer probably adjusted back to 3955 since it was fixed properly. No impossible timeline here.
Corrected entry: In the scene when Cornelius and Zira are being interrogated, Cornelius talks about how the sacred scrolls tell of the first ape that talked. Yet in the first film, they denied this, saying apes came first and that's why they had to destroy the doll in the first film. So either Cornelius or Dr. Zeus is wrong about what's in the sacred scrolls.
Correction: In the first film, it's implied that Dr. Zaius was privy to the whole truth about man's downfall, but kept it from the ape population. Also, in the second film, before Dr. Zaius heads out with Ursus and the gorillas, he talks to both Cornelius and Zira about how the apes have been living in innocence, implying that he's told them both of what he knows. So it would be normal for Cornelius and Zira to have been made aware of the events revealed during the interrogation.
Corrected entry: Throughout the POTA movies, chimpanzees are portrayed as peaceful pacifists, while gorillas are prone to violence. Later scientific discoveries prove (at least in some respects) the reverse: while gorillas are the more peaceful apes, getting violent only to protect their families or territory, chimpanzees have been found out to eat meat as well, attacking and dismembering small animals and even monkeys.
Correction: But these are not today's apes, they have been through an evolutionary process and changed. We are not the same in behavior as Neandertals or Cro-Magnon man. Since gorillas are stronger and not quite as smart as chimps, they have been relegated to the more brute force roles and overtime become more militant, while the chimps being brighter and lingual have become less aggressive.
Corrected entry: After Dr. Hasslein shoots the baby chimp, Zira pushes the baby over the side of the ship. The baby chimp lands in the water and floats. It floats as if it were made of plastic and weighed nothing. Had it been a real chimpanzee baby it would have had some weight to it and gone under water.
Correction: Not really. Bodies don't immediately sink once they hit water. Some may float for hours.
Correction: There is too much we don't know and too many possibilities to declare this a mistake. Perhaps they have trade with lands further to the south. Perhaps the climate has changed and land around New York is now hospitable to bananas. Perhaps in the two thousand years between our time and hers, a strain of bananas developed that thrives in temperate environments.