Just Write (1998)

Harold is a film buff who works as a Hollywood tour guide rather than use his knowledge in a more challenging way. When he meets Amanda, a rising new film star, he pretends to be a hot shot screenwriter in an attempt to impress her. Soon the pair fall in love, but she wants him to help write her new movie that she is set to star in with Brad Pitt. Can Harold cover up his lie? Or can he really make it as a writer?