Movies are very easy and very good dates. You don't have to say much so you don't have to worry about saying something stupid. Comedy movies are good for first dates, since you'll be laughing together and she'll be having fun, unless it's a horrible comedy and then you can just laugh with her at how stupid the movie was. If you've already dated a few times then you can go to a romance/comedy or horror movie, since those are always winners. Romance/comedies and pure chick-flicks are great, girls always love them, I know this because Nikki is always melty and romantic when we watch them, and she's all over me when it's over. Horror movies are good too because she'll be clinging onto you during the really scary parts.
Basically, you can't really mess up a movie date, so they are always good.