Punish bad behaviour. That is what I always do. No going to the movie with you is bad behaviour. Thus I would punish her in one of two ways:
1) Tell her the movie was good and that the friend you went with cooked you dinner afterwards. (she will assume it is a girl friend because of the cooking, but you can try anything similar - don't be obvious about making her jealous.
2) Be distant on your next meeting.
Please note, I don't use punish in a harsh sense but it is just a word that suits the purpose. You might prefer to call it conditioning or modeling (or though all are linked anyway).
Another quick note - a movie is a boring date. Girls get asked out to dinner, to the movies, for a coffee a whole bunch. A movie is boring and doesn't allow you to run game, since most game is conversational based. For your first dates you want to do something original (to her) and fun.
Don't let it bug you that she didn't come along this time, just have a better plan ready next time. Oh, and if your new to the game make sure you do a lot of reading and then a LOT of practice.
