Birmingham's new library; Naturally 7; killer whale film Blackfish

With John Wilson.In 2010 Dawn Brancheau, a trainer at the Seaworld theme park, died after being dragged into the water by Tilikum, Seaworld's largest performing Orca. A new documentary, Blackfish, explores how Tilikum came to be in captivity and asks whether whales kept as performing animals will inevitably become aggressive. Philip Hoare, author of Leviathan Or The Whale, reviews.The vocal group Naturally 7 are about to perform at this year's BBC Proms. They demonstrate how they create the sounds of a variety of instruments using just their voices, and reveal how they build up a song, layer by layer. A big new library is the flagship project of Birmingham City Council's plans for the regeneration of the city. Ahead of the opening early in September, John takes a tour of the £188 million building, with project director Brian Gambles, and Birmingham-born author Jonathan Coe.Author Kamila Shamsie reveals her Cultural Exchange choice: the 1950 classic movie All About Eve, with Bette Davis as an aging Broadway star.Producer Rebecca Nicholson.