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Bestseller One Day gets movie premiere in London

24 August 2011 Last updated at 09:41 BST

The film adaptation of David Nicholls' best-selling novel One Day has premiered at London's Westfield shopping centre.

The story follows the lives of Emma and Dexter, played by Anne Hathaway and Jim Sturgess, who meet while at university.

The stars told the BBC's Lizo Mzimba about the challenges of bringing the characters to the big screen.