Actually, it does not. When one says, "I am going to the cinema," one implies going to cinema to catch/watch/see a movie.
Cinema does not have the same meaning as movie/film. Otherwise, people could have said "I am going to see a cinema."
2007-10-27 17:57:31 補充：
If choose_914 just stated the meaning found in dictionary & nothing more, I wouldn't say nothing. But (s)he went on. Sorry, I can't resist.
Following your logic:
Restaurant is a place u can eat & drink. Therefore, restaurant has the same meaning as food & beverages?
Sometimes, less is more.