War Horse, based on a novel by Michael Morpurgo and adapted by NIck Stafford, "is the powerful story of a young boy called Albert and his beloved horse, Joey, who has been requisitioned to fight for the English in World War I. Caught in enemy crossfire, Joey ends up serving on both sides during the war before landing in no man's land, while Albert, not old enough to enlist, embarks on a treacherous mission to find his horse and bring him home. A remarkable tale of courage, loyalty and friendship, War Horse features ground-breaking puppetry work by South Africa's Handspring Puppet Company which brings breathing and galloping horses to life on stage." Here's a look at the fifth anniversary celebration: