The second Tomb Raider film was banned for depicting China as having "secret societies." [source]
Sometimes controversial footage must be cut before films can play in Chinese cinemas. Examples include the deletion of scenes showing hanging laundry in Shanghai during Mission: Impossible III, the removal of a reference to the Cold War in Casino Royale, and the omission of footage containing Chow Yun-Fat that "vilifies and humiliates the Chinese" in Pirates of the Caribbean: At World's End. [source]
Idea: The Comedy Central Roast of China.