Sienna Miller

Sienna Miller on why her new role is not 'just a wife'

So much so that she altered a script when she thought Nina Fawcett was appearing as too much of a stereotypical "wife" - with the director framing the scrawled-on piece of paper.

The film - based on a true story - is about explorer Percy Fawcett, played by Charlie Hunnam, and his quest to find a mysterious lost city in the heart of the Amazon.

His first mission in 1906, accompanied by surveying partner Henry Costin (played by Robert Pattinson), sees them return with apparent evidence that this previously undiscovered community exists.