On my way: the untold story of Rouben Mamoulian, George Gershwin and Porgy and Bess

A revelatory history of the operatic masterpiece that both made and destroyed Rouben Mamoulian, its director and unsung hero."Bring my goat!" Porgy exclaims in the final scene of Gershwin's opera Porgy and Bess. Bess, whom he loves, has left for New York City, and he's determined to find her. When his request is met with astonishment—New York is a great distance from South Carolina's Catfish Row—Porgy remains undaunted. He mounts his goat-cart and leads the community in an ecstatic finale, "Oh Lawd, I'm on my way."

Stephen Sondheim has called "Bring my goat!" "one of the most moving moments in musical theater history." For years it was assumed that DuBose Heyward—the author of the seminal novella and subsequent play, Porgy, and later the librettist for the opera Porgy and Bess—penned this historic line. In fact, both it and "Oh Lawd, I'm on my way" were added to the play eight years earlier by that production's unheralded...