Debevec said the 2008 movie The Curious Case of Benjamin Button is still the best example of a computer-generated face, as actor Brad Pitt aged - backwards - from a wrinkled old man to a baby.

　　Debevec added that in addition to changing the look of an actors face, there could be another use for digital faces in the world of entertainment.

　　Theres also a big interest in trying to bring back actors who are no longer with us and thats a big deal right now, said Debevec.

　　Last year, effects artists created a digital double of deceased Asian pop singer Teresa Teng in concert with Chinese pop star Jay Chou. Fans can still see and hear the concert on YouTube.

　　With a ton of data from us and a ton of artistic effort and technical know-how from Digital Domain, they were able to create a singing face of Teresa Teng where she performed not only one of her original songs but two songs that werent even written at the time she was alive with Jay Chou, said Debevec.

　　Debevec expects directors will start to use more virtual production techniques, like those seen in the movie Avatar.

　　Even though it looks like thats a bunch of expensive technology, ultimately its going to be much easier to make movies that way, he said.

　　Debevec said that with virtual production, there wont be a need for as many people behind the scenes.

　　Sony Pictures Imageworks David Smith pointed out that computer generated locations can also be more realistic to actors.

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