It's the one quality thing in CHina that's actually good. It's not cheap! 

Expensive, noisy, sucky sound, and even when willing to pay to go to the movie theater, they sometimes wont sell you the ticket if they think that there are not enough people.

Back in Prague, they charge like 40-80Rmb per person. I never tried go to chinese cinema, so i can not compare it. 

Because movie theaters come from the West. Like everything Western in China, it's way overpriced for its quality, and makes the moviegoers feel like they are in luxury and winning face because they've spent half their salary to go watch 90's movie remakes in 3D.

Cinema tickets can go as low as 25 rmb per person for the latest movie when buying on the internet. You often have to add 10-15 Yuan to that while in the cinema if you're going to see an IMAX or 3D movie but it's still ridiculously cheap.

Tickets can go around 100-150 per person when you buy them inside theaters though...

It's all about knowing where to look.

I went to watch films in a cinema just for once,then i found it overpriced.So,i bought a hi-fi unit afterwards,now i just need to lie in bed watching films while having fruits and drinks bought with the money saved.And i can still go out to visit places with the rest money.

As TheWired said before, you will see a huge difference on the price if you buy through "Groupon style" Chinese sites or if you get a membership card for a cinema. 

Never buy a ticked directly at the cinema , you will be paying at least twice the "real" price

Nobody  go to cinema, thees people  prefer to  see movies and TV with computer , such as Tudou.com . or www.youku.com,  these site , they're  free,