Retro-fitting a screen classic with 3-D imagery could take as little as four months, using software to manipulate a digital copy of the film.
Peter Jackson, director of The Lord of the Rings, said last spring that he wanted to reissue the trilogy in 3-D if Avatar persuaded enough cinemas to put in new 3-D projectors. Last week technicians at Weta, the production company that had worked on the trilogy, said they had experimented with 3-D battle scenes and proclaimed them to be "gob-smacking".
another interesting line:
Last week the University of Southern California (USC) published a report suggesting that after seeing a 3-D film in the cinema in 2009, 40% of people would prefer to watch television in 3-D, too.