This threads funny..
Take her to see Blood the last vampire..
This works in 2 ways.. If you realise that you don't like her, you don't have to talk to her throughout the whole film... If you do like her, then straight after the movie you have something to talk to and an excuse to walk her home, take her to the taxi rank or go for a drink and a dance if its stopped raining.
I took my Fiance to see Kill Bill at the cinema on our first date. was great fun.. plenty to talk about afterwards.. it was raining that day as well. I quite like the rain, My fiancee does too, I like dancing in it.. its fun and refreshing.. but best done with beer in one hand and lady in the other.