She will, it is just that some women like to pay for themselves because they don't want the man to think they owe him anything if you know what I mean.
Now, the next question is, how do you behave at/after the movies? I would just try to be normal while at the movies and take cues from how she behaves. After the movies, tell her how much you really enjoyed being with her and include some specifics from the night together and tell her we need to do this more often. Then see how she reacts.
The bottom line is you are going to have to wing it based on how she reacts to what you say/do. If things seem to be going well and she is still smiling at everything you say, you can touch her hand and say something like, your smile is so pretty. Touching a hand is not too forward and if you do it at the same time as you complement her smile, it will seem charming without being too forward. You can then see how she reacts.