In 2005, Eleanor Coppola shot 80 hours of behind-the-scenes footage during the production of “Marie Antoinette. ” It was her daughter Sofia Coppola’s third feature and a quite ambitious one at that, with unprecedented access to Versailles, a budget of $40 million and 57 shooting days on the schedule. Though Eleanor had made one of the great documentaries about the filmmaking process in “Hearts of Darkness: A Filmmaker’s Apocalypse,” capturing the chaos of her husband Francis Ford a...