Saving Private Ryan
Schindler’s List
Gone With the Wind
Wizard of Oz
Indiana Jones and the Lost Ark (saw the rest of the series)
Star Wars Episode VI: Return of the Jedi (saw the rest of the series)
Godfather series
From the first 100 of that top 250, I’ve not seen:
The Dark Knight
Fight Club
City of God
Once Upon a Time in the West
Se7en
Leon: The Professional
Sunset Boulevard
American History X
Django Unchained (#34 already? seriously?)
City Lights
The Dark Knight Rises
Spirited Away
Modern Times
The Shining
M
Toy Story 3
Intouchables (on the 'flix list)
The Great Dictator
The Prestige (on the 'flix list)
Reservoir Dogs
Requiem for a Dream
The Treasure of the Sierra Madre (on the 'flix list)
Once Upon a Time in America
Oldboy
Princess Mononoke
Raging Bull
Discounting the ones I will see soon that’s 23/100, not too bad. Mostly they are 1/ very old, 2/ horror/violent, or 3/ asian fantasy/magic realism . Interesting.
That makes them count twice.
The Princess Bride
I have never seen
A LOTR movie
A Harry Potter movie
And have no plans on ever seeing them. My life is just fine, thank you.
I am somewhat of a movie buff, and try to see all the popular or acclaimed movies when they are out. But those types of movies will never see me in the audience. I will even sit through an awful movie if it has won an award, like Citizen Kane, but if I don’t find the premise interesting, I usually won’t bother.
I haven’t seen any of the talkies.
46 maybe?
ETA: Is the number of movies from the list which I have seen.
Of the IMDB-250 list linked above I’ve seen 188 of them.
Rashomon. I checked it out from the library, started watching it, quit. I thought I was a Kurosawa fan but really I’m only a fan of The Seven Samurai.
The Treasure of the Sierra Madre. I saw it on Askance’s list and it’s a movie I think I’d really like. Just never went far enough out of my way to see it. Same with Chaplin movies like Modern Times and The Great Dictator, although I think The Gold Rush is the one I most wanted to see. Surely they’re public domain by now? …And after a quick look at YouTube, looks like the Chaplin movies are, Sierra Madre isn’t. Huh, guess I don’t have an excuse for that one anymore.
I don’t watch nearly as many movies as I used to, so there’s a less than 50% chance that I saw any recent famous movies that don’t involve superheroes. Then there’s a bunch of movies I’d only see if I was in a relationship. I must’ve been in a dry spell when Titanic was popular, for instance.
Top Gun, Fight Club and Oldboy I’ve definitely not seen. I may have seen a late-night TV showing of Who’s Afraid of Virginia Woolf?, as I have a vague memory of that. And Chaplain’s The Gold Rush I’ve not seen in its entirety, just clips. All the rest mentioned in this thread I’ve seen including The Lion King just a few months ago.
I’ve seen Gone with the Wind, but haven’t seen the other three.
Also haven’t mustered an interest in Fight Club, Pirates of the Caribbean, Ocean’s [number], or anything by Quentin Tarantino.
I’ve skipped several, such as A Beautiful Mind, due to hype aversion (too many people yell at me about how I have to see a particular movie and I rebel). Still debating whether I can overcome the hype aversion problem to watch Hunger Games, which is currently sitting on the TV stand courtesy of Netflix. My husband thinks I’d probably like it, but again, it’s overhyped IMO to the point of being more about following popular trends than the movie actually being that interesting.
Of course, I lasted ten minutes maximum trying to watch Citizen Kane before I gave up out of utter boredom, so I’m quite sure I’ll be dubbed a low-brow Philistine. I don’t really care. 
This. Plus I don’t think I’ve seen almost any kid movie since I was a kid. No Toy Story, no Car movies, no Pixar anythings.
That list of 250 is a very shaky one, IMO. But I’ve still seen almost 200 of them, and most of the ones I haven’t seen are ones released after 2000 (including quite a few I’ve never even heard of, let alone seen.)
If you can’t watch a movie in context with when it was made you shouldn’t try to watch anything more than 10 years old. If there is one movie that can truly be called revolutionary it is Citizen Kane. No movie was done anyway close to that before and all movies changed after. That is why it is thought of as the greatest movie ever. If it came out now it would be seen as slow and stilted. But it came out in 1941 and it was genius.
When I have more time I’ll look over the list more but at a glance I have seen quite a few. A lot of the ones I haven’t seen are movies I have heard so much about I really have no desire to see them. For instance Shindlers List. I have seen many parts of it. I know the entire plot. I can’t get motivated to see a movie that already know. Some of the others I have seen so many pieces of them that I can’t remember if I ever sat down and watched from beginning to end.
ETA 62 out of the top 100