Filming returned to the Exchange in Swansea to film two more scenes: The denouément of the episode was filmed on 28 July; and the pre-credits sequence on 30 July. The most important day of filming was on 31 July 2007: an evening location shoot of the party's arrival in London. Before filming commenced, Minogue covered her death scene above a chroma key mattress. The scene in London commenced filming at sunset in Cardiff city centre. For security concerns—specifically, protecting Minogue—the street was sealed off for the first time since the show's revival in 2005.