When you think of Britain’s favourite spy tumbling down the canvas of The O2 Arena (aka The Millennium Dome) Albert Square doesn’t spring to mind. “I had an image of the map at the beginning of Eastenders,” Armstrong explains of the soap’s aerial shot of London’s serpentine river. “I said, ‘I’ve got a vision of cutting off this corner here’ - that’s the excuse for taking a shortcut – and that’s where it all evolved.” It was a particular challenge to keep the action exciting as “it gets boring” on water after a while and Armstrong’s soap opera inspired scenario provided some challenges. “It’s like trying to film on the M1 in the middle of rush hour,” he says of shooting on London’s biggest waterway. “It was a nightmare. The traffic is phenomenal: barges coming past that you have to give half an hour’s notice, then it’s open and you gotta shoot, then get out of the way and let them through again.” Equipped with an armada of boats, it took Armstrong nearly three weeks to put together the iconic eight minute sequence.