Looking for real film co-production

Of late, big Hollywood studios have been trying to reach out to Chinese audiences by adding Chinese elements to their productions. But even then such Hollywood films are far from real co-productions because the Chinese elements are simply "decorations" aimed at boosting their appeal in the lucrative Chinese market.
For Hollywood studios, the Chinese market has become increasingly important. China is the world's second-largest film market and has the potential to be the largest. And US producers are adjusting to this fact by trying to "please" Chinese audiences by including popular Chinese actors and adding familiar Chinese elements to their films.
Thirty-eight Hollywood movies were screened in China last year, among which actress Xu Qing played a role in Looper, and Jet Li and actress Yu Nan were part of The Expendables 2 cast. This year has seen actress Zhou Xun playing a role in Cloud Atlas, for which Dreams of the Dragon Pictures was one of the investors and distributor for the Chinese region. And in Iron Man 3, extra scenes featuring actress Fan Bingbing and actor Wang Xueqi, and several Chinese brands were added for the Chinese version.