To achieve this shot MILO with EIGER arm was used as the camera needed to reach across a roadway without the rails impeding the movement of the foreground vehicles. After the move had been programmed, the background plate was filmed both forwards and backwards so that various objects in shot would move forwards and backwards.Derren was filmed walking backwards but talking normally with carefully choreographed movements so that he would miss the passing traffic and interact with people and obstacles from the previous passes.