Behind Olympic Stadium lies a staging area for some participants in the opening ceremony. They gather and hear an encouraging organizer yell through a megaphone: "Break a leg!"

Then they walk a bridge over the River Thames and into the stadium. It's quite a breathtaking entrance for the biggest show on the planet, and some just have to let out primal screams as they prepare for their big moment.

—Jon Krawczynski — Twitter http://www.twitter.com/APkrawczynski

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EDITOR'S NOTE — "Eyes on London" shows you the Olympics through the eyes of Associated Press journalists across the 2012 Olympic city and around the world. Follow them on Twitter where available with the handles listed after each item, and get even more AP updates from the Games here: http://twitter.com/AP_Sports