The potential downsides to mucking about with the space-time continuum.

This HG Wells adaptation isn’t strictly set in London but in the fictional city of Everytown – still, those white terraced houses, big red buses and stiff-lipped residents do feel awfully familiar. Three years before the outbreak of war, the film predicted that bombs would reduce the city to rubble by Christmas 1940 – which is almost exactly what happened. Thankfully, its more outlandish forecasts – a decades-long conflict, a global plague and a tribal society ruled by Ralph Richardson in an Afghan coat – haven’t come to pass. Yet.
London has taken a hammering in the movies this summer, besieged by blue-goo aliens in 'The World's End' and bombed to smithereens in 'GI Joe: Retaliation' and 'Star Trek into Darkness'. That's nothing new – over the years movies have hurled their fair share of mayhem at our fragile little city.
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