Brooks plays a neurotic screenwriter who's lost his writing "edge" and finds a real-life muse to put the spark back into his work.
Speaking of "edge", it's evident Brooks has lost his with this film. He tries to poke fun at Hollywood, but its mostly very light-hearted, a bit disjointed, and only occasionally funny. Brooks has done some fine films in the past (Broadcast News, Defending Your Life), but this isn't one of them. Some interesting cameos from a variety of directors, and a good comedic turn by Sharon Stone just can't save this movie. For a better, more cynical take on Hollywood, see The Player.