Otvaranje Olimpijskih igara u Londonu

Performers wait for the Opening Ceremony at Olympic Stadium before the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Charlie Riedel)

The Olympic Stadium prepares for the Opening Ceremony of the 2012 Summer Olympic Games on Friday, July 27, 2012, in London. (AP Photo/Mike Egerton, PA) UNITED KINGDOM OUT NO SALES NO ARCHIVE

Guo Lei of Beijing, holds up two Chinese flags before entering Olympic Stadium for the Opening Ceremony of the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Julie Jacobson)

In this photo taken with a fisheye lens, a man takes his photo with another man dressed as a cup in front of the Olympic Stadium prior to the Opening Ceremony for the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Dmitry Lovetsky)

Members of the British military walk to Olympic Stadium for the Opening Ceremony of the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Julie Jacobson)

Anna Prior, right, walks with her children Detty Prior, center, and Johnny Prior toward Olympic Stadium to watch the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Julie Jacobson)

Britain's Prime Minister David Cameron, left, London's Mayor Boris Johnson, center, and Labour party leader Ed Miliband wait for the start of the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Jae C. Hong)

An actor tends sheep during the pre-show prior to the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Mark Humphrey)

The Red Arrows fly over Olympic Stadium before the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Matt Slocum)

British Prime Minister David Cameron, left, stands with his wife Samantha and Princess Anne after arriving for the Opening Ceremony of the 2012 Olympic Games on Friday, July 27, 2012, in London. (AP Photo/Toby Melville, Pool)

A spectator wears glasses in the colors of the British flag during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Markus Schreiber)

Frank Turner sings during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Charlie Riedel)

United Nations Secretary-General Ban Ki-moon, right, stands alongside his wife Yoo Soon-taek ahead of the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Jae C. Hong)

Bill and Julien Howells from the United States pose in front of the Olympic Stadium prior to the Opening Ceremony for the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Dmitry Lovetsky)

The Red Arrows flies over the stadium during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Eric Gay)

The Olympic Stadium prepares for the Opening Ceremony of the 2012 Summer Olympic Games on Friday, July 27, 2012, in London. (AP Photo/Anthony Devlin, PA) UNITED KINGDOM OUT NO SALES NO ARCHIVE

An artist is lowered down during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Ivan Sekretarev)

Actors perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Morry Gash)

Artists perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/David Goldman)

Performers gesture towards the Olympic rings as they are elevated from the stadium floor during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Jae C. Hong)

Artists perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/David Goldman)

Actors perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Ivan Sekretarev)

Actors scale chimneys during a performance at the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London.(AP Photo/Mark Humphrey)

Artists perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Ivan Sekretarev)

The Olympic rings are lit with pyrotechnics during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/David Goldman)

The Olympic rings are raised from the stadium floor during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Mark Humphrey)

The Olympic rings are lit with pyrotechnics during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/David Goldman)

Performers scales a representation of a smoke stack during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Charlie Riedel)

Actors perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Eric Gay)

Actors perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Matt Dunham)

Artists perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Morry Gash)

Actors lying on beds meant to represent Britain's National Health Service (NHS) perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Jae C. Hong)

Artists perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Ivan Sekretarev)

Actors dressed as Mary Poppins perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Mark Humphrey)

Actors perform in a sequence meant to represent Britain's National Health Service (NHS) perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Jae C. Hong)

Artists perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/David Goldman)

Actors perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Charlie Riedel)

Actors enact a performance representing Britain's National Health Service (NHS) during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Mark Humphrey)

Artists perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Morry Gash, Pool)

Artists perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/David J. Phillip)

Audience members holding LED panels light up the stadium during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Morry Gash)

Fans watch actors perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Charlie Riedel)

Fireworks illuminate the sky over the Tower Bridge and River Thames in London during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Lefteris Pitarakis)

Actors perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/David J. Phillip)

Actors perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Lee Jin-man)

Rockets propelled artists perfrom during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Eric Gay)

Smoke rises from the Olympic rings as they are suspended over the stadium during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Mark J. Terrill)

Fans watch actors perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London.(AP Photo/Charlie Riedel)

The Olympic rings are suspended over the stadium during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Mark J. Terrill)

A person dressed as Queen Elizabeth II parachutes into the Olympic stadium during the Opening Ceremony of the 2012 Olympic Summer Games at the Olympic Stadium in London, Friday, July 27, 2012. (AP Photo/Ezra Shaw, Getty)

Athletes march in the stadium during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Bruce Hanselman)

Actors perfrom during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Matt Slocum)

Smoke from fireworks surrounds the iconic Tower Bridge over the River Thames in central London, decorated with Olympic rings, during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Lefteris Pitarakis)

LONDON, ENGLAND - JULY 27: Performers depict a view of the Industrial Revolution during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England. (Photo by Ezra Shaw/Getty Images)

Actors perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Mark Humphrey)

Fireworks illuminate the sky over the Tower Bridge and River Thames in London during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Lefteris Pitarakis)

Artists perform during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Eric Gay)

Performers dance during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Jae C. Hong)