Constellations, Theatre Upstairs, Royal Court, London
Not since Mike Bartlett's Cock, so to speak, have I been so exhilarated by a new play premiered at the Royal Court's Theatre Upstairs. As I sat through the extraordinary 65 minutes of Nick Payne's Constellations -- performed with uncanny brilliance by Rafe Spall and Sally Hawkins -- this sense of slightly incredulous elation was accompanied by the sinking feeling that, as a critic, one would be hard put to be…