A well-told story's power to captivate and inspire people has been recognized for thousands of years. Peter Guber is in the business of creating compelling stories: He has headed several entertainment companies--including Sony Pictures, PolyGram, and Columbia Pictures--and produced Rain Man, Batman, and The Color Purple, among many other movies. In this article, he offers a method for effectively exercising that power. For a story to enrapture its listeners, says Guber, it must be true to the teller, embodying his or her deepest values and conveying them with candor; true to the audience, delivering on the promise that it will be worth people's time by acknowledging listeners' needs and involving them in the narrative; true to the moment, appropriately matching the context--whether it's an address to 2,000 customers or a chat with a colleague over drinks--yet flexible enough to allow for improvisation; and true to the mission, conveying the teller's passion for the worthy endeavor that the story illustrates and enlisting support for it. In this article, Guber's advice--distilled not only from his years in the entertainment industry but also from an intense discussion over dinner one evening with storytelling experts from various walks of life--is illustrated with numerous examples of effective storytelling from business and elsewhere. Perhaps the most startling is a colorful anecdote about how Guber's own impromptu use of storytelling, while standing on the deck of a ship in Havana harbor, won Fidel Castro's grudging support for a film project.