Not to be confused with: The Last Airbender (2010)

Plot comparison: In the blue corner, James Cameron’s imminent sci-fi extravaganza about a human soldier infiltrating the alien Na'vi by using a special half-human / half-Na'vi thingymajig called an avatar. 

In the red corner, M. Night Shyamalan’s forthcoming sci-fi extravaganza about an Airbender (not what it sounds like) who discovers he's the physical re-incarnation of the world itself, known as... keep up at the back... an avatar.

If they switched directors: Shyamalan cops out with a lame twist - let's say the human turns out to have been an avatar for an Na'vi all the time. 

Cameron decides to literally bend air out of the screen and spends a decade perfecting the technology, which sadly proves to make it impossible for audiences to breathe and kills millions.

Irksome to whom?:  Fans of TV show Avatar: The Last Airbender, on which Shyamalan's film is based.  Despite being on telly since 2005, Cameron nabbed the screen rights to the Avatar name by dint of getting there first. Finders, keepers. 

Bet it was an awkward meeting when M. Night's minions had to explain that one.