Movies aren't a good idea if you don't have enough rapport and kino before hand you will have a hard time or it feel weird cuddling up during the movie, plus it's cliche.
So if you don't think you do talk to her on the phone casually to build comfort and rapport.
Oh and here's a tip to get more close during the movie, this is a line I made up and it has had a 100% success rate if you fulfill the other requirements, and it seems not something weird like counting shoulders or stretching, so AFC BTW.
When the movie starts you look at her and say "Are you comfortable?" if they say "Yes" you say "Do you wanna get more comfortable?" if they say no "Well do you wanna get comfortable?"(maybe throw it in as an embedded command if you wanna be more sure, but I've never had to bother) Then either way you pull up the arm rest, turn your body towards hers with open body language, this is usually enough for them to realize what you mean. I have had some girls that are like "what?"(Pfft, air-headed girls...) Then what you do is pat your legs like you would to a dog, it should be conveyed kind of teasingly like because she is dumb for not getting it in the first place.

yea im screwed because I have not had any opportunity to build comfort, remember 5 mins b4 the movie I will meet her for the first time. my game plan so far...open or say the line about the movie being scary. Then...I dont know i think if i make a move without even building comfort she will be wierded out.