Soon enough the results will be sufficiently believable that actors/celebrities will be selling the right to use their image and voice for a role in a movie without ever actually being on camera.
https://www.hollywoodreporter.com/business/business-news/act...
https://www.hollywoodreporter.com/business/business-news/sag...
Also, talent agencies have been paying for 3d scans of their top talent for years, just to have banked in case anyone should need it. I would guess that all the A list actors plan on getting scanned every 5 years so they can be in a movie at any age.
And I see two scenarios too:
1. You can pay the studio (?) some semi-trivial amount for the use of a completely generated AI actor that perfectly fits the Director's vision for the role.
2. You get legal knock-off actors. Sure, it's $20 MM to use Tom Cruise, but for only $1 MM you can use AI-generated Thom Ruse, who looks exactly like Tom Cruise, but just slightly different enough to be legally considered his own IP.
The upside to this is that tech might be able to fix up some actors.
Who will get the Oscar?
Like (virtual) Japanese and Korean music idols, but for tv and movie actors.