It’s not going to be long. Why bother with all the expense dealing with real people, real sets, camera crews, etc. etc.?
At best, maybe you capture the likeness of an actor in 3D using photogrammetry and that’s all you need from them.
Ultimately, fake actors can just be conjured up for whatever roles are needed; fat, thin, tall, short, etc.
Then what will slugs like DeNiro do?
He’s not tall enough to work fast food counters!