Cinestar Amitabh Bachchan carried the Olympic torch at Southwark in London today, a day before the formal opening of London Olympics amid cheers and aplause.The 69-year-old actor in a white track suit covered a 300-metre distance running and walking occasionally and waved at the cheering crowd, as the Olympic Games torch relay entered the 69th day today.Ahead of his participation in the relay, Bachchan said it was a "proud moment" for him and the country to be invited to carry the Olympic flame.He was invited by the London Olympic Organising Committee to participate in the Olympic Torch Relay.