Near the end of the film when Mae says goodbye to Noa, she is shown to be concealing a revolver behind her back in her right hand. Then Noa offers Caesar's pendant to Mae and she accepts it with both hands extended. The gun has disappeared.
Raka would have needed a larger horse to carry his body weight.
Apes cannot swim, though they have been seen to play in or wade through water. Proximus and his cohorts would likely have drowned when the hangar flooded.
Sylva is using an electric shocker to electrocute Noa, but since Noa is holding an electrical conductor (the electricity tower beam or cable) with both hands, there is no potential difference, much like how birds remain unharmed while perched on high-voltage wires.
The apes climb along the sea cliff, getting completely drenched, yet they are able to light their torches a few minutes later.
When Noa is being electrocuted by Sylva while hanging on the metal cable, Noa uncontrollably lets the cable go and falls down. In reality, when under the electronic current, muscles on contrary contract and Noa would not have been able to let the cable go until the electrocution is over and losing his consciousness.
After the grassland "hunt" sequence, When Raka, on horseback, strikes a chimp with his makeshift club, it makes a distinctly metallic "clang" sound, but the club is wooden; an uprooted small tree and it's rootball.
When the bunker floods, the water is above the level of the ocean and somehow draining from a floor above the apes despite their floor not being flooded.
Eagle tribe is shown using gauntlets made of cloth to protect their hands from the sharp claws. Unless the apes somehow mastered the sewing technique (and learned to grow and harvest cotton), there's no way they'd be able to use gauntlets made over 300 years ago, as they'd tear to shreds almost immediately.
Apes use some sort of uncovered fire lamps in their wooden huts. Naturally, it's a fire hazard, and the entire village would burn down.
Proximus Caesar tells Noa that he needs 'instant evolution', the implication being that, as humans evolved over a great amount of time from a common ancestor with other apes, it is this fact that allowed them to develop the technology that he craves.
However, most of the advanced technology that he is referring to has come about in the last few hundred years, not many thousands, and has nothing to do with evolution, mainly due to the fact that homo sapiens have not evolved at all in the last tens, maybe even hundreds, of thousands of years.
However, most of the advanced technology that he is referring to has come about in the last few hundred years, not many thousands, and has nothing to do with evolution, mainly due to the fact that homo sapiens have not evolved at all in the last tens, maybe even hundreds, of thousands of years.