Classic/Popular movies you've never seen...

When I was a kid I saw a little bit of a Star Wars movie, didn't like it, and never gave any of them another shot. So those films are the first that come to mind. I also haven't seen one Harry Potter film.

I haven't seen most "classic" Westerns either like Once Upon a Time in the West, The Searchers, Rio Bravo, Blazing Saddles, etc. Just not a fan of the genre.