Simon Amstell is the latest big name to be added to the line-up of the Latitude Festival, which takes place in Henham Park, Suffolk from July 17 - 20. The comedian has been working on new material at the Invisible Dot club in London in recent weeks so this may be the first major public outing for his latest show, which, among other things, may discuss the controversy he briefly became involved in when he made a remark about apartheid on BBC Radio shortly after the death of Nelson Mandela.