Sheldon, Dyan. Confessions of a Hollywood Star. 2005.
This is the sequel to the popular Confessions of a Teenage Drama Queen, which was also made into an equally popular movie.
Lola Cep wants to be a famous stage actress, and thinks LA and the movies aren't as classy or worthwhile. However, once she finds out that a movie will be filmed in her town that summer, she makes it her goal to get a part, even if it is just as an extra. She goes to extraordinary lengths, including getting a job as a maid in the hotel where the cast & crew are staying so she can talk to them into giving her a part.
Lola is very persistent and she doesnt' really listen to anyone. She is very witty and readers will be easily amused by her antics.