In all likelihood, what your buddy told you was 99.9% certain to be nonsense. The Chinese gov't does exercise some control of films that are screened in China (e.g. POTC III), and they definitely do exert some control over films made in China (which is why so many carry certain thematic elements [e.g. Fearless, wherein Jet Li's character prevails over various fighters from other countries]) but I doubt very much that they could axe a film being made because of content.