Sir David Hare has had many highlights in 45 years of writing for the stage. Here as a guest of the Auckland Writers Festival this weekend, he talks about how culture has changed since his breakthrough play Slag in 1970. There will be a play reading of his 1995 drama Skylight on Sunday afternoon; a revival of Skylight starring Carey Mulligan and Bill Nighy was a major success in London and New York last year.