[quote name='J7.']We are fast approaching photorealism, check out this video of a CGI woman
http://blogs.pcworld.com/gameon/archives/007483.html[/QUOTE]
That clip used a video of the woman in question as reference; it wasn't creating something new from nothing, as you'd have to do in this scenario.
Besides, is it really fair to judge photorealism from a flash video clip? The resolution there is too low to provide accurate representation.
[quote name='J7.']What is accomplished with deceased actors? The same thing that is accomplished by having different actors in films. Some actors are better than others, some are people's favorites.[/QUOTE]
I don't care if Gene Kelly is your favorite actor of all time - a CGI version of him with an imitator doing a voiceover can never replace the real thing, and thinking that people will pay to see something that's
almost like Gene Kelly is an insult to his fans. Whatever made people fall in love with the actor in the first place will almost definitely be lost in translation.
I think it's safe to say that actors being "better than others" goes right out the window when their every move and word is written by someone else decades after their death.
[quote name='lmz00']Assuming that caught on, it'd probably lead to entire movies being done in CGI, eliminating the need for human actors.[/QUOTE]
It takes a ton of computing power to make CGI movies, and photorealism is leaps and bounds beyond what we've seen so far. It's possible, yes, but it'd take a ton of time and money, and a few leaps in technology couldn't hurt either.
Human actors are a lot cheaper, so why replace them?