Jesse Armstrong: Why I'm writing about rich people again

Emma SaundersCulture reporter at the Hay FestivalGetty ImagesJesse Armstrong, one of the UK's most successful screenwriters, is not one to rest on his laurels.Hot off the back of his hit show Succession, which followed the twists and turns in the lives of media mogul Logan Roy, played by Brian Cox, and his four children, Armstrong is back with his first feature-length film, Mountainhead.It's a satire film about a…