The 'Alice in Wonderland' star, who ironically featured in her former partner Tim Burton's 2003 film 'Big Fish', straddles the tuna in the odd photo, taken to highlight the plight of marine species, reported Daily Telegraph.
"I am a big supporter of protecting the marine environment. I'm actually very phobic about fish so when I was asked to be photographed naked with a 27 kilogram tuna I was more worried about touching it than getting my kit off. "I conquered my fears and by the end of the morning we'd truly bonded. He (tuna) will be my Valentine," she said.