With the contract killing of a fashion magnate by his ex-wife, amid the sort of squabbles and underhand dealing that could easily feature in a soap opera storyline, the Gucci saga was irresistible to director Ridley Scott. As "House of Gucci" premieres in London, we check out its stars Lady Gaga, Jared Leto, Jeremy Irons and Adam Driver on the red carpet.

A fascinating new book links art, the mentally ill and Adolf Hitler. It tells the story of how modern art was originally inspired by the work of psychiatric patients and how Hitler – twice rejected from art school – turned first on modern artists and later on those who had inspired them. The Nazis murdered thousands of psychiatric patients, in a chilling forerunner of the Holocaust. The book is entitled "The Gallery of Miracles and Madness: Insanity, Modernism, and Hitler's War on Art". Its author Charlie English joined us on Perspective to tell us more.