Question: Does this movie take place in the same universe as ALIENS?
Question: There is a scene where Parker is telling Grace that the piece of ore he is holding, called "unobtainium", is why they are on Pandora. This same ore was used in the 2003 movie, "The Core", to build the manned drilling machine to bore through Earth, to the core. Was the use of the same ore name in Avatar, done with permission from the earlier movie? Or was it a mistake?
Question: When the humans are escorted back to their ships at the end, why are there Navi wearing human clothing? (Like those are some big shoes) and why are the guns that the Navi are holding so gigantic? Aren't these guns for humans?
Question: How come Trudi sometimes needs an oxygen mask but mostly doesn't - I can understand her not needing one (apparently, there is a glass partition between her and the rest of the helicopter; so whoever is with her has to wear masks, as they are behind the glass partition. But at one stage, Trudi and Norm are up front and Jake and Grace are behind them, and none of them are wearing masks - is the glass partition movable? And during the battle scene, you can see a bullet hole in Trudi's helicopter glass - shouldn't she need a mask now, as the outside air is getting in? Finally, how come Trudi needs a mask just after the home tree is destroyed and she and Norm and Jake and Grace (who was shot and is dying) escape and head for the Tree of Souls? What makes this time so special?
Question: What does the mineral the RDA is after do? It's probably a superconductor, but it could also be a catalyst for hydrogen production (explains the floating mountains), or elements from the Island of Stability*, which are super-nuclear-fission fuel. Is it added to other materials to make them stronger and better, like platinum? Does this mineral make practical fusion possible, or even antimatter reactions? Is it an actual anti-gravity mineral? What is it? *http://en.wikipedia.org/wiki/Island_of_stability http://en.wikipedia.org/wiki/Dilithium_(Star_Trek)Fictional_elements_and_materials.
Question: When they get the injured Grace to the Tree of Souls, she's naked, just covered in vines. How did they get those plants to cover her and hold onto her like that? And why use plants, and not common human underwear? And come to think of it, why does she need to be naked in the first place? Sure, the roots need to access her body, but wouldn't it do to just access her head?
Question: Now for people who have mastered the art of nearly light speed travel, wasn't it odd that they could not have destroyed the tree of souls with missiles launched from a distance? Dropping explosives seems so primitive.
Question: At the end when all the forest animals on Pandora join in the fight, they seem to be targeting only humans. Since they can't determine the good ones from the bad ones, wouldn't this have put Norm Spellman (now back in his human form) in extreme danger? Always considered it a plot-hole, but any explanations would be welcome.
Question: Why are humans unable to breathe the air on Pandora? A lack of oxygen seems plausible, but then the fires which erupt during the Hometree bombing wouldn't be sustained.
Question: Is it really likely that a main governing body on Earth wouldn't have a say in whether or not humans eradicate a whole species, not just on Earth, but on another planet, and a humanoid species at that? It just seems odd that a mining company owner has the final say on whether a scientifically significant race lives or dies.
Question: Do the Na'vi actually think Jake is one of them from a different "tribe" or do they know he's an Avatar? He shows up speaking English with human clothes, obviously not a native yet they allow him to stay (albeit after some resistance). Why is this?
Question: I'm assuming that floating rocks are made from Unobtanium - thus able to fly. But where did they get all the water to supply the waterfalls?
Question: When Neytiri's father dies, he gives her his bow. Does that make Neytiri the chief? Or is Tsu'tey the chief now? And who's the chief after Tsu'tey dies? I read somewhere that Jake has got the face markings of a chief in one of the final scenes, suggesting he's the new leader. Though that seems a bit weird, given his lack of experience.