'Gettysburg,' the Prequel: 'Gods and Generals' Gods and Generals arrives in theaters. It's a film based on novelist Jeff Shaara's inner look at key Civil War figures in the early years of the conflict. Director Ron Maxwell also handled Gettysburg. That film was based on the Pulitzer Prize-winning novel The Killer Angels, written by Shaara's father Michael. NPR's Bob Mondello offers a review.