'Unstageable' was the first reaction of the National Theatre's artistic director, Nicholas Hytner, to the idea of dramatizing His Dark Materials. But last night's opening night has triumphantly proved him wrong.-The Sunday Times Nicholas Wright has revisited his adaptation of Philip Pullman's best-selling fantasy trilogy, tightening and improving it, and this revised version is to be published alongside the reopening in the National Theatre's 20042005 season.