Muse

Albert Brooks is Steven Phillips, a veteran screenwriter of 17 films who is told he has lost his edge. A fellow writer with a string of successes under his belt (Jeff Bridges) refers Phillips to Sarah (Sharon Stone), a professional muse (see Greek mythology). In exchange for the royal treatment and a showering of expensive gifts, she will grace writers with her presence, which seems to magically spark profitable ideas from the client's mind. Is her power real or is it all in her clients' heads