Operation Royal Wedding

At 1200 GMT on Saturday 19th May, the world’s eyes will turn to the small British market town of Windsor, to witness the wedding of Royal Prince Harry and his Hollywood Princess Meghan Markle. But what does it take to stage the greatest show on earth which will be watched by an estimated 2.8 billion people in more than 180 countries across the globe? With unprecedented and exclusive access to many of the key elements of the biggest event in recent British history, Operation Royal Wedding reveals the behind the scenes story of a nation pulling together to create a world class event and celebrates the unsung heroes who make it all happen. (National Geographic)