The actress is part of a risqué new campaign for the U.K.'s Blue Marine Foundation

By Gabrielle Olya
Updated February 12, 2015 02:00 PM

Helena Bonham Carter is getting up-close-and-personal with a tuna for a good cause.

The actress, 48, appears nude while embracing a big-eye tuna in a new campaign for the Blue Marine Foundation, which is urging the U.K. government to build marine reserves in three of its overseas territories.

“We all have a responsibility to try and return our world to the next generation in the state we inherited it in, not worse,” she explains in a press release of why she got involved. “It would be a sad thing if in our dotage we’d be describing a tuna fish to our grandchildren like we a dodo today.”

Bonham Carter was so passionate about the cause that she agreed to pose for the campaign despite a fear of fish.

“I am a big supporter of protecting the marine environment,” she said. “I’m actually very phobic about fish so when Greta [Scacchi, a fellow actress involved in the campaign] asked me to be photographed naked with a 27kg tuna, I was more worried about touching it than getting my kit off.”

The star of the upcoming Cinderella live-action movie teamed up with Scacchi and Gillian Anderson for the cause, signing an open letter asking for the creation of marine reserves in the Pitcairn Islands, Ascension Island, and South Georgia and the South Sandwich Islands.