I’d like it to be You Can’t Take It With You, but speaking realistically it would probably be 1984.
Rosemary’s Baby. I spent a yearon an annotated version of it, and I still find new things about it.
Clearly, The Neverending Story.
Quadrophenia
Lonesome Dove, by Larry McMurtry
Gone With the Wind, book version.
King Arthur and the Knights of the Round Table. Now the problem is picking a version…
Hmm. Orlando Furioso, maybe? On the grounds that it is very long, has a little of everything, and Much Ado About Nothing is sort of an adaptation of part of it, so I wouldn’t have to go Shakespeare-less forever.
Mallory’s Le Morte d’Arthur isn’t a bad choice at all. I don’t know if it’s what I would go for first, but it would definitely make my Final Three.
It may seem a strange choice, but Neal Stephenson’s Cryptonomicon might go well for me. I re-read that at least once a year, sometimes twice. Or Heinlein’s The Moon is a Harsh Mistress… or Starship Troopers. Hmm… maybe Tim Powers’ …
Who is the evil overlord keeping me down to just one story anyway? 
This. In the original French. That way I’d have a few decades worth of something to do just reteaching myself French via deduction and memory with it. 
The Giving Tree. Still makes me tear up.
The unabridged version of Stephen King’s The Stand. Lots of good reading there.
It seems that you have taken what would possibly have been my top choice. Either way, I would have to choose either The Stand or Barry Hughart’s The Chronicles of Master Li and Number Ten Ox series. I love pretty much everything about that series, and The Bridge of Birds is one of the best stories I have ever read(and would be my pick if I had to choose one of the three stories from the series).
Book: The Lord of the Rings or Nine Stories by Salinger
Movie: Shawshank Redemption
Music: The Lamb Lies Down on Broadway