Call of the wild

A Chinese star uses her rising global profile to fight for endangered animals, Zhang Yuwei reports in New York.

Li Bingbing is one of the most popular superstars in China, but the actress in the latest Transformers film likes to speak humbly of her roots - which, she says, have given her a strong awareness about nature and the environment.

"I was born in a small town in Heilongjiang, where my life then was very simple and everyone around me was very thrifty," Li says.