It's way too late now, but I still haven't seen E.T.

That's not half as bad as a girl I know who's never seen Die Hard - I asked her what her family did at Xmas

I wouldn't worry, you're not really missing much.

Hmm, let's see...

Easy Rider
The Sixth Sense
Gladiator
Get Carter
Rebel Without a Cause
Deliverance
Vertigo
Crouching Tiger, Hidden Dragon
Raging Bull

(Mostly picked from here, selecting the ones I'd actually quite like to watch, and ignoring the dross - for example I've never seen the Sound of Music properly, and would quite happily die without ever seeing it )

There's probably a lot more I've forgotten about.

I've been quite late to the party on quite a few big films - for example I didn't get round to seeing the latest Star Wars films until last year. I also watched Das Boot the other day, and was relieved that it lived up to the hype. I wish I'd seen it sooner!

Of your list I haven't seen:

Easy Rider
Rebel Without a Cause
Vertigo
Crouching Tiger, Hidden Dragon

But then I don't have much desire to see them either

Oh and you couldn't pay me to sit through the sugar-coated CGI of the SW prequels

Haven't seen:

Gone With The Wind
African Queen
Brief Encounter
Lawrence Of Arabia
Citizen Kane
Goodfellas (I've seen Godfather 1 and 2 and that's enough films worshipping gangsters for me)
Annie Hall
Musicals - Almost all of them.

I've seen Crouching Tiger, Hidden dragon numerous times. I quite like it but then again, the majority of other people I know who have seen it say it's complete rubbish.

Hmm, I've seen all of the ones listed so far, and a fair few musicals!

1. The original script line in Gone... was apparently 'Frankly, Fanny, I don't give a hoot!'

2. I haven't seen any of the above either except Goodfellas (you really should )

3. I suspect there's a lot of people who've seen big chunks of Kane but never been able to sit through the whole thing

I've seen Citizen Kane. It sucks donkey. I have also seen Goodfellas, which does not.

I've never seen
It's a Wonderful Life
Breakfast at Tiffany's
Most of the Police Academy series
Anything containing Harry Potter, or set in Narnia.
Friday 13th, Halloween, Carrie, the Shining.
Mission Impossible (any)
The sequels to the Matrix (regrettably, I did suffer through the first in the series).
Titanic
Chinatown.

I think I ought to watch the last of those.

Haven't seen the horror ones you mention bar Halloween (which was ruined as soon as it became clear Michael was invincible ), or the MIs or Matrix sequels (I hear they're pretty bad so never dedicated the time)...

Unfortunately I persuaded myself to sit through Titanic, and I've no real interest in the others

Most of those films that are in the "must see before you die" kind of lists.

So let's see now, a mob boss who has to see one of his son's die. A promising young man who gets sucked in to a life of violence, loses the love of his life in a car explosion and becomes hard, bitter and ends up killing his brother and then lives under constant threat of assasination as his marriage breaks up.

That ain't worship, that's a close study of the superficial allure of gangster world, but it isn't worship. Pulp Fiction on the other hand...

Some films above that I won't repeat, in addition to:

Kill Bill
The Godfather
300
Pulp Fiction

Some genuinely great movies people are missing out on here.

As for films I've missed... I have The Man Who Wasn't There sat on my shelf, for the last 5 years, and I still haven't watched it. And I like the Coen Bros. stuff.
I actually can't think of a mainstream movie I've not seen, tbh.
The joys of being a media brat in uni, I suspect.

I've seen most mainstream films, most trips to the rental shop nowadays result in me going 'seen, seen, seen, seen, seen, haven't seen it has Julia Roberts in it though, seen, seen, seen, Robert Redford *shudder*, seen, seen, seen.

Kill Bill I gave up on about 20 minutes in - the whole tone of it even before it got to the silliness I knew was coming put me off, and I didn't see the point in wasting 2 hours or whatever...

The Godfather I've never seen in one complete sitting.

300 is good, has that certain X-factor for want of a better phrase

Pulp Fiction is brilliant, and I normally can't stand films like that