Britain's Queen Elizabeth declared the London Olympics open after playing a cameo role in a dizzying ceremony designed to highlight the grandeur and eccentricities of the nation that invented modern sport. Children's voices intertwining from the four corners of her United Kingdom ushered in an exuberant historical pageant of meadows, smokestacks and digital wizardry before an audience of 60,000 in the Olympic Stadium and a probable billion television viewers around the globe.

Many of them gasped at the sight of the 86-year-old queen, marking her Diamond Jubilee this year, putting aside royal reserve in a video where she stepped onto a helicopter with James Bond actor Daniel Craig to be carried aloft from Buckingham Palace.