Helena Bonham Carter has posed naked with a bigeye tuna as part of a campaign by a group of charities headed up by Blue Marine Oceans, which is urging the government to 'protect its overseas territories by creating the world's largest marine reserve'.

Bonham Carter commented 'We all have a responsibility to try and return our world to the next generation in the state we inherited it in, not worse. It would be a sad thing if in our dotage we'd be describing a tuna fish to our grandchildren like we do a dodo today'.