I'm going to preface this post with a warning: I don't believe this has much to do with interactivity, but the switching up of stories is pretty hilarious/creative.
I'm not sure who has or hasn't seen (500) Days of Summer, but if you have you may get a kick out of this.
If you haven't, well then go culture yourself. It's a great movie.
I don't feel I need to explain it much other than telling you this is pure greatness.