A potentially charming, almost fairy-tale premise for a romantic comedya Hollywood tour-bus driver (Jeremy Piven) who cruises past the homes of celebrities meets a movie star (Sherilyn Fenn) and pretends to be a screenwriter, thus ushering him into a potential romance and a taste of the local high lifeprogressively loses its air and becomes a mainly lugubrious experience because the script (by Stan Williamson) is so formulaic and threadbare. Andrew Gallerani, in his first feature as a director, does a pretty good job with the actors, but they need better material than they’re handed here. With JoBeth Williams, Alex Rocco, Jeffrey Sams, and Wallace Shawn. (JR)