Minutes earlier the 86-year-old monarch appeared in her first film role on big screens with the James Bond actor Daniel Craig at Buckingham Palace, her London residence.
In the film, the two were seen entering a helicopter which swept off over the capital. Minutes later a helicopter appeared above the stadium and released two people who parachuted just past the stadium.
The Queen then walked into the opening ceremony in east London, before the 60,000 strong audience, and before a choir sang the national anthem.
Britain's Queen is enjoying her highest level of public popularity in 20 years following the celebration of her Diamond Jubilee this year and the royal family is expected to take a high-profile role during the Games.
The Queen's equestrian granddaughter Zara Phillips is also competing.
