A couple of observations on certain movies:
In Annie Hall, Shelley Duvall uses the euphemism "finish" to mean having an orgasm. I first saw that movie when I was 15 and had no idea what she was talking about.
Some people writing about the movie The Party think the daughter of the hostess and her friends who show up with the elephant are hippies. I don't know why they think that because they're not hippies, in fact there aren't any hippies in the movie at all.