California Governor Arnold Schwarzenegger and Hong Kong kungfu star Jackie Chan have co-starred in a new TV Announcement in the Public Interest (API) to fight piracy.

The half-minute shot was shown at the premiere ceremony of the "Harry Potter and the Goblet of Fire," the fourth installment of a hugely successful series of films, in the underground cinema of Shanghai Museum on Thursday evening.

In the trailer, the two superstars are chasing pirates riding on motorbikes. Schwarzenegger says in English that in a film they are sure to defeat the pirates and then Chan said in Chinese, "But in real life we need your help."

Schwarzenegger accompanied Harry fans to celebrate their festival in Shanghai on Thursday evening, praising the Warner Brothers in introducing the film into China.

"I just want to say thank-you very much for this great great time we have had in Shanghai and we are really looking forward to seeing this movie tonight," he said.

Schwarzenegger, the Austrian-born actor-turned-politician, is leading a trade delegation to China this week, hoping to sell the world's most populous nation everything from oranges to software as well as hammering home his anti-piracy message.

Source: Xinhua