The Corn is Green - discussion

Having seen the play itself on 12 May, I attended the National Theatre again this afternoon to see Nicola Walker and Iwan Davies in conversation on the Lyttelton stage. They were reflecting on the rewards and challenges of performing in Emlyn Williams' The Corn is Green. Totally absorbing. 
The main blip is Waterloo Bridge and the extra is of some floral displays - a nod I think, to The Chelsea Flower Show.