@thunder bird , ofcorse hollywd avatar , basically its a scince fiction mvie , people from our planet want to occupy a beautiful planet which is boast of beautiful & powerful trees.those trees are priceless for those greedy people from the earth.
this is the story which we see in ths oscar winning movie.
bt behind ths the greedy people signifies the industrialists who want to occupy the villages & after destroying the trees they want to make industrialisation in the villages.which is a global issue today.
two types of stories are there.in english litearature its called ambiguous means double meaning story.
similar like our raju hirani's movie.like 3 idiots . not realistic story at all.ek larka degree bina 130 patent leke duniya ka sabse bara scintist ban jata hai.not realistic bt iske pichhe indian education system ka jo scenario dikhaya gaya hai woh pura realistic hai.
like doc ya engineer ban na hi hai.1lakh salary ka naukri pana hi hai.tumhe agar football pasand ae to mat khelo, usme career guranteed nahi hai. parai karo.is system ke against awaz uthaya gaya hai main story ke pichhe.