Performers take part -REUTERS Performers-REUTERS Performers- REUTERS The Olympic flag is risen- REUTERS Vanderlei Cordeiro de Lima prepares to light the Olympic flame- REUTERS Fireworks explode- REUTERS Performers- REUTERS The Maracana Olympic Stadium during the opening ceremony is seen from the Mangueira favela slum- REUTERS Performers-REUTERS Fireworks explode- REUTERS Performers- REUTERS USA flagbearer Michael Phelps- REUTERS A performer takes part- REUTERS Performers- REUTERS Performers- REUTERS Athletes carry the Olympic flag- REUTERS A performer takes part in the opening ceremony- REUTERS Performers- REUTERS Performers- REUTERS Children run with kites in the shape of doves- REUTERS Performers- REUTERS Fireworks explode- REUTERS The olympic rings are displayed- REUTERS Performers dance- REUTERS The Olympic Flame is seen lit- REUTERS Fireworks explode- REUTERS Fireworks explode during the opening ceremony- REUTERS