For the last couple of summers, the girls and I have made plans to watch lots of movies. A couple of years ago, we decided (or maybe I decided) to watch classic movies: Bogart, Hepburn, that sort of thing. Last year, it was movies that are significant for their place in pop culture: When Harry Met Sally, Rocky Horror Picture Show, etc. We haven't always been that successful, more from a lack of time than a lack of interest.
This summer, we're thinking about using IMDb's Top 250 list. I don't know how many we'll manage to see but it'll be fun working our way through them.