The story line is so so, the dialogue mediocre. but its a must see movie. cameron's vision in crafting this world, defy expectations in bringing realism and substance to an alternate reality. the storyline is rife with analogies (pandora/unobtanium/american indian struggle). etc. but for all its almost 3 hour length, the movie movies at brisk pace. the cinematography and sound track are both top notch.