just make sure that you don't bring it up again. let her drive the train. if y'all do go, i would even make a game of it. see if she opens your door for you and then make a joke about it if she doesn't. something like "you invite me to a movie and won't get the door for me? what kind of gentleman are you?" and then smile and laugh. make fun of yourself in front of her. she will a) laugh and b)it'll head her off if she wanted to. just some suggestions. if you do go DO NOT ask if/when y'all will do it again. just say hey thanks for the movie. hope you had a good time & then turn and leave. no lingering hoping for a hug or kiss. just a man on the go. good luck.