The Olympic cauldron is lit during the Opening Ceremony at the 2012 Summer Olympics, on July 27, 2012, in London. #

Sheeting is extended across the audience during the 2012 Summer Olympics Opening Ceremony, on July 27, 2012, in London. #

An actor scales a representation of a chimney during an enactment of the Industrial Revolution at the 2012 Olympics Opening Ceremony, on July 27, 2012, in London. #

Newly "forged" Olympic rings light up the stadium in London, on July 27, 2012. #

Young actors perform as children haunted by creatures from British storybooks in London's Olympic Stadium, on July 27, 2012. #

A giant marionette of Lord Voldemort from the Harry Potter books makes an appearance in the Opening Ceremony, on July 27, 2012, in London. #

Actors perform in a sequence meant to represent Britain's National Health Service (NHS), on July 27, 2012. #

Performers dressed as the character Mary Poppins descend to the ground in the Olympic Stadium, on July 27, 2012. #

Union Flags, commonly known as the Union Jack, are projected on the Palace of Westminster next to Big Ben on the bank of the River Thames, on July 27, 2012. #

Actor Rowan Atkinson, known for his character Mr. Bean, performs in the opening ceremony of the London 2012 Olympic Games, on July 27, 2012. #

Artists dance during a medley of British pop songs through the years, in London, on July 27, 2012. #

Artists wear jetpacks during the Opening Ceremony in London, on July 27, 2012. #

A live tweet from Sir Tim Berners-Lee, creator of the World Wide Web, appears in the crowd in Olympic Stadium, on July 27, 2012, in London. #

Fireworks on display at Tower Bridge on July 27, 2012 in London, England. #

Britain's flag bearer Chris Hoy holds the national flag as he leads the contingent in the athletes parade in the Olympic Stadium, on July 27, 2012. #

People watch the Opening Ceremony of the London 2012 Olympic Games at a pub in London, on July 27, 2012. #

Two members of the Montenegro delegation photograph themselves as they parade in the opening ceremony of the London 2012 Olympic Games, on July 27, 2012. #

Members of Canada's contingent in the athletes parade in the Olympic Stadium, on July 27, 2012. #

Members of Australia's contingent show off messages written on their hands during the athletes parade, on July 27, 2012. #

Flag bearer Mariel Zagunis of the U.S. holds the national flag as she leads the contingent in the athletes parade, on July 27, 2012. #

Fireworks illuminate the sky over the stadium during the Opening Ceremony of the London 2012 Olympic Games on July 27, 2012. #

Spectators are illuminated during the Opening Ceremony, on July 27, 2012. #

An actor performs during "Bike a.m", part of the Opening Ceremony in London, on July 27, 2012. #

A wide-angle view of the Olympic stadium during the Opening Ceremony of the London 2012 Olympic Games, on July 27, 2012. #

Muhammad Ali (center) participates in the Opening Ceremony, on July 27, 2012 in London. #

The final torch bearers walk through the Olympic Stadium, on July 27, 2012, in London. #

The final seven torchbearers light the Olympic cauldron during the Opening Ceremony, on July 27, 2012. #

Arms of the Olympic Cauldron rise after being lit, opening the London 2012 Olympic Games on July 27, 2012. #

After the separate lit torches rose together, forming the cauldron, the 2012 Olympic Flame burns brightly, on July 27, 2012. #

Fireworks explode over the Olympic Stadium in London on July 27, 2012. #

Fireworks light up the Olympic Stadium, on July 27, 2012. #

Fireworks illuminate the sky over the Olympic Stadium during the Opening Ceremony of the 2012 Summer Olympics, on July 27, 2012. #

A fisheye lens view of fireworks exploding after the Olympic cauldron was lit during the Opening Ceremony in London, on July 27, 2012. #

Spectators wave Union Jacks in the Olympic Stadium, on July 27, 2012. #

Sir Paul McCartney performs "Hey Jude" and "The End" in the Opening Ceremony of the London 2012 Olympic Games, on July 27, 2012. #

Participants gathered around the Olympic Cauldron in the Olympic Stadium, on July 27, 2012. #

A couple embraces after the Olympic Flame was lit during the opening ceremony of the London 2012 Olympic Games, on July 27, 2012. #