Remake

Winner of more Hugo and Nebula Awards than any other science fiction author, Connie Willis is one of the most powerfully imaginative writers of our time. In Remake, she explores the timeless themes of emotion and technology, reality and illusion, and the bittersweet place where they intersect to make art.
Remake
It's the Hollywood of the future, where moviemaking's been computerized and live-action films are a thing of the past. It's a Hollywood where Humphrey Bogart and Marilyn Monroe are starring together in A Star Is Born, and if you don't like the ending, you can change it with the stroke of a key.
A Hollywood of warmbodies and sim-sex, of drugs and special effects, where anything is possible. Except for what one starry-eyed young woman wants to do: dance in the movies. It's an impossible dream, but Alis is not willing to give up. With a little magic and a lot of luck, she just might get her happy ending after all.
From the Paperback edition.
Remake depicts a film industry that no longer creates original movies, but uses computer technology to remake old stories from existing footage. It's a Hollywood of simulated sex, drugs, and special effects, where anything is possible--except for Alis's dream of dancing in the movies.