S1m0ne

A producer's film is endangered when his star walks off, so he decides to digitally create an actress to substitute for the star, becoming an overnight sensation that everyone thinks is a real person.
The career of a disillusioned producer, who is desperate for a hit, is endangered when his star walks off the film set. Forced to think fast, the producer decides to digitally create an actress "Simone" to sub for the star — the first totally believable synthetic actress.