Sounds good

Although I think you forgot to mention one very important aspect in what you did, perhaps because either you didn't notice you were doing it (maybe from a rich experience), or you thought it is self-implying - the body-language. You just did small talk with her, so from her reaction I'm guessing that you could get her attention not with what you were saying but with your confidence and BL. It seems to me from this story that between you and her all of the important communication was not about movies or other nonsense, it just came from your attitude and confidence, which is crucial, especially in this kind of situations.

Cheers!