Why is China's economy slowing?
The government wanted a slowdown, and has encouraged it because there are long-term forces that mean it was inevitable sooner or later.
The government's aim is to get spending by Chinese consumers to take a bigger role in driving the economy, and it has the support of, for example, the IMF in that.
http://www.bbc.co.uk/news/business-32380523
This is why China's economy is slowing but Box Office is booming.