Avatar 2!!! holy shit. Okay, nerd time
Unobtanium is a real word used by scientists.
http://en.wikipedia.org/wiki/Unobtainiumwikipedia wrote:
In engineering, fiction, or thought experiments, unobtainium (also spelled unobtanium) is any extremely rare, costly, or physically impossible material, or (less commonly) device needed to fulfill a given design for a given application.
Story is not always the most important characteristic of a film. Avatar's plot was fairly shallow (intentionally so), but just because it's not complex or totally groundbreaking does not make it throwaway. Avatar was great not because of the "3d" effects but because of the
cinematography. The amount of quality, polish, editing, etc. that went into the film was an achievement on it's own... something which the average moviegoer often doesn't recognize but is as important to any film as the writing.