I've seen the film of Barry Lyndon but not read the book.
Oh if you liked Tom Jones you'll enjoy Barry Lyndon.
My bad on Apocalypse Now (and no redemption for Kubrick). Point remains the same though - a rare case of a film that I think is actually better than a classic book.
Some of the TV versions are good (Persuasion with Amanda Root and Ciaran Hinds was brilliant) but they usually bear only a passing resemblance to the books. Austen is a bitingly funny and clever writer and that is always lost in the screen adaptations. One of the worst screen versions was Andrew Davies' take on Emma, which left out key episodes in favour of gratuitous dancing scenes...
I keep thinking of the dancing scenes in The Armstrong and Miller show.
The best of 20th Century American literature is just about as good as literature gets - but you've missed the very best exponent out of your list, namely F Scott Fitzgerald. I always assumed The Great Gatsby had to be overrated until I actually read it. I'm also a huge fan of Raymond Chandler, who owes a lot to Fitzgerald (as do Philip Roth and the rest of them).
Yes true I do like F Scott Fitgerald though the Great Gatsby is really his only classic innit.
Hemingway also, and I'm not averse to Saul Bellow but again, it isn't that I don't like them they just don't grab me in the way that Tom Jones, P&P, Crime and Punishment or Hard Times have, where I want to tell everyone how much I loved it.
And I adore Raymond Chandler. Very little would give me greater pleasure than to hear of the discovery in an attic of a box filled with unpublished Chandler novels. I just wasn't sure it would count as a classic in the sense of the OP.
And anyone in the above posts who put Captain Corelli's Mandolin or the Kite Runner will be damned to suffer eternity in a book club meeting every Tuesday in purgatory.