I do this all of the time with everything, but especially movies!
First off, make sure that there was plenty of touching (Kino) before hand. It does not have to be mad sexual touching, but something more than a high five or a hug. Try having her take your arm as you escort her to the living room or whatever. Don't be too serious about it, the whole point is that she is holding on to you and you are already creating physical contact.
As you watch the movie, take her hand and bring it to you. I always kiss a girl's hand, it may be corny, but I could never understand just holding onto the hand. It feels bland. Maybe stroke her wrist and underside of her forearm a little as the movie is going on.
Slowly escalate from there.
FOCUS COMPLETELY ON THE MOVIE THE WHOLE TIME!
It works for me, hopefully it can work for you!
