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Director Paul Greengrass on finding truth through film

17 October 2013 Last updated at 10:05 BST

Hollywood film director, Paul Greengrass, has told HARDtalk that it is possible to access truths about human emotion and behaviour when making fictional films based on real events.

He disputed the notion that films are a less truthful art-form than documentaries, arguing they use a different set of tools in order to access authenticity.

You can watch the full interview on BBC World News on Thursday 17 October at 14:30 and 20:30 GMT and on the BBC News Channel at 00:30 on Friday 18 October.

Watch more clips at HARDtalk's website

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