Pro-fish activists have won permission from Disney to adapt a film poster for Finding Nemo to help promote vegetarianism to youngsters. Pressure group Peta says it is using the cartoon characters on leaflets, along with a two-metre tall fish, to persuade children not to eat fish. The film features a shark who attends a support group for vegetarians which uses the Peta slogan prominently. A spokesman for Peta (People of the Ethical Treatment of Animals) said: "We were delighted to see our tag-line 'Fish are friends not food' in the Finding Nemo movie. "The slogan is even being used on...