Despicable Me 2 Gets No Release in China
It hasn't always a censorship reason when certain western films are not allowed to enter Chinese cinemas. Even though the idea might come up sometimes, it's quite unclear what a harmless movie for kids like Despicable Me 2 could contain that is deemed inappropriate for Chinese audiences. Maybe the fact that they are hugely successful among kids and could provoke them to expect more western-style elements in their entertainment could come to mind. It is out of the question that not only economic reasons are a driver for the government in Peking to wish for mostly Chinese productions to dominate on the cinema screens. The kids shouldn't see too many foreign things.
The Croods is another animation film that started in China in June and made a box office of 64 million Dollars there in just two weeks before it got spontaneously pulled from cinemas. China wants to encourage its own animation projects and such a huge foreign success is a thorn in the side. And considering how much in love the Chinese audience was with the Minions from Despicable Me 2 and how many reports were released about the movie, they understandably wanted to curb that enthusiasm as quickly as possible. An official statement was not made.