India, Aug. 10 -- Mumbai - Ahead of World Elephant Day (12 August), film, TV, ad and other content producers John Abraham, Dia Mirza, Pooja Bhatt, Sunny Leone, Rajan Shahi, Rishina Kandhari and Amin Khan, are calling on their friends and colleagues from the industry to join them in protecting elephants by signing the People for the Ethical Treatment of Animals India's (PETA India) Elephant Freedom Pledge and commit to not to use real elephants in their productions. The producers - who are among 25 film, TV, web and advertising industry leaders who have signed the pledge-are challenging their colleagues to pledge to use humane options such as mechanical elephants, cutting-edge computer-generated imagery (CGI) or visual effects instead of liv...