For the scenes in London, poilce would close the roads at 4am and filming would begin immediately. It would last for one hour, and at that time the police would reopen the roads. As well as having to deal with traffic, the producers also had to ask clubbers to find alternative routes home. In terms of the traffic, the producers correctly predicted that asking drivers to either wait for up to an hour or find another way might cause some considerable consternation. As such, they employed several extremely attractive young women (one of whom was
Danny Boyle's daughter) to make the necessary requests. This plan had the desired results, as the drivers responded quite amicably to the young girls.
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