Alexander Walker (in the Chair) talks with Michael Billington , Richard Mayne and Helen McNeil. This week's subjects: Jenkins Ear by Dusty Hughes at the Royal Court Theatre, London; Francesco Rosi 's film Chronicle of a Death Foretold; Kepler, a radio play by Robert Forrest (Radio 3, yesterday); Comic Iconoclasm at London's ICA Gallery; The Haw Lantern, a collection of new poems by Seamus Heaney. Producer PHILIP FRENCH