Theatre's tinsel pound makes children of us all again | Mark Lawson
From pantos to atheism, from Great War slaughter to Ronnie Corbett, every hit festive show will make us look back in wonderThe Royal Court Theatre in London has always been a pioneer: the site of John Osborne's game-changing Look Back in Anger in 1956, and of appearances by classical veterans, such as Laurence Olivier and John Gielgud, in dangerous new plays. And it is now witnessing what is another startling departu…