movie dates are for girls you know will kiss u and have kissed before so you can spen the whole time kissing, otherwise it sucks to go through a whole movie without kissing, but if you do heres some advice:
while watching the look at her and see if she looks back, if you make decent eye contact smile do this a few times, an get your head closer everytime, eventually if you are getting a good response grab her hand lol throughout the movie go from caressing her hand through to giving her a peck on the hand, then eventually kissing her hand, and then nibble her fingers lol, try an get eye contact whilst doing this, eventually just well if everythings going well it will happen naturally, but you should be really close if you get this far so it shoudlnt be long before you kiss.
use my advice if you want but it will only work if you are already on good terms with her, very good terms. well this has worked for me in the past, an it went off without a hitch so it might work with you