.... wrong movie and movie type/genre. if you don't know this girl well, and it was just a date, she'll probably think you're stupid for taking her to a horror flick?
that's a stereo type to consider that girls will be more attached to you after a horror film. that was the past.
today's horror films exhibit a different kind of chill that sends out a message from Hollywood. they are trying to match up with the extremes of society. and you think about all the worldly events that have happened from when Dorthy and Todo enter a different realm - to know. movies are an immitation from someone's mind, put onto video, to try to entertain people.
match up the events and the way movies have developred over time. it's not horror flicks alone that retard the standards of developing teens.
she'll most likely think you're a creep for taking her to watch the Grudge 2, of all the other movies you could have watched in/out of the theaters, whether it was scary for you or not.