OK, so over the past few days we might have been skeptical about Avatar. It’s only natural, cynical buggers that we are, that when a big-ol’ hoohar is made of a new film our shackles tend to go up. The louder the fanfare, we find, the damper the squib.

20th Century Fox have released a new featurette about the human technology that’s being employed in the hotly-anticipated Avatar. The three minute video features the usual big-upping platitudes from head honcho James Cameron, Richard Taylor from WETA and producer Jon Landau, as well as cast members Sigourney Weaver, Giovanni Ribisi and Michelle Rodriguez.

CGI effects have revolutionised modern filmmaking to the extent that effects alone can make or break a movie. But is an over-reliance on CGI driving audiences away and cheapening the cinematic experience? We take a look at the computer generated revolution – and how the revolutionaries might soon find themselves in the firing line.