definitely don't drop a night out with the boys to watch a movie with her.
you've already made plans, and you can always watch a movie with her any other night.
One night watching some stuff on the tube isn't going to suddenly patch up all that has happened between the two of you as of late.
She doesn't need to be dropped like a bad habit, but some space and thinking time is definitely in order, especially because of this new break up.
don't play all sorts of games either.
If you're serious about a relationship with her, be up front and honest about every single thing.
don't try to do crazy things that aren't who you are just to try and trick her into loving you again or "keep her guessing". to me, that just seems deceitful.
Be yourself, be open and honest about your feelings toward the situation at all times.