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Amanda Seyfried: 'Lovelace was a risk'

24 January 2013 Last updated at 10:57 GMT

Les Miserables star Amanda Seyfried has admitted taking on the lead role in a new biopic of porn star Linda Lovelace was "risky".

The actress said: "It is risky and people did not stop reminding me of that. But I also really wanted a challenge. It appealed to me in that way."

The US rights to the film have been snapped up following its world premiere at the Sundance Film Festival in Utah.