The Queen visits the National Theatre
22 October 2013 Last updated at 17:45 BST
The Queen and the Duke of Edinburgh have visited the National Theatre, as the institution celebrates its 50th birthday.
During the tour, the Queen met one of the puppet horses from the NT's acclaimed production of War Horse.
The Queen has previously seen the show, based on the Michael Morpurgo novel, which tells the story of Joey, a horse who serves in WWI.