I think we're not that far from the day all movies will be produced by AI, including all parts in various languages using the most popular actors per given market, all accurately translated and of course perfectly synced since there would be no dubbing but creation on the fly. First they'll use virtual copies of real actors by purchasing rights from their estate, until the public will slowly accept full virtual and cheaper ones. I give them 20 years max, and I'm being optimistic (pessimistic?).