I'm still kind of scratching my head over what this thread means, so I'm giving it my own spin: Movies I find so watchable I watch them over and over again (which I do a lot, kind of like listening to a favorite CD). By genre (in no particular order, otherwise):
Action/Adventure/Sci Fi
Lord of the Rings Trilogy
The Bourne Trilogy
The Matrix Trilogy
The Fifth Element
Serenity
The Harry Potter Films (mostly Prisoner of Azkaban and beyond)
Pirates of the Caribbean (the first one)
Hidalgo
Lock Stock & Two Smoking Barrels
Snatch
From Hell
Thelma & Louise
The Long Kiss Goodnight
Batman Begins
The Day After Tomorrow
Ghost Rider
First Contact
Spiderman (I and II)
X-Men (I and II)
The Transporter (I and II)
National Treasure
Transformers
Mad Max
The Road Warriors
Gallipoli
Dinosaur (the Disney film)
Emotionally Touching/Romance/Feel Good/Feel Something
Sense & Sensibility (with Emma Thompson/Hugh Grant)
Pride & Prejudice (with Keira Knightly as well as the BBC Miniseries with Colin Firth)
Four Weddings and a Funeral
Benny and Joon
Just Like Heaven
Under A Tuscan Sun
Everything is Illuminated
As Good As It Gets
Finding Forrester
Field of Dreams
Cold Mountain
Saving Grace
The Last Emperor
Classics/Hard To Genrefy Films
Dead Man (stunningly beautiful and bizarre but hardly anyone I know has heard of it)
Elizabeth
Surf's Up
Suspicion (Alfred Hitchcock)
Spellbound (")
Rebecca (" the original with Laurence Olivier and Joan Fontaine)
Bringing Up Baby
Jane Eyre (the original, with Orson Welles)
Roman Holiday (the original, with Audrey Hepburn and Gregory Peck)
To Kill A Mockingbird
Gone With The Wind
Doctor Zhivago
Others I forgot to list but remembered last night
The Piano (an incredibly moving/disturbing film to me)
The First 3 Wallace & Gromit movies (though I didn't love Curse of the Were Rabbit)
The Golden Child (silly movie, but I love it)
Bram Stoker's Dracula (also silly, but I love the way it looks)
Movies I Think Were Great But Only Watched Once and Will Never Watch Again (too disturbing)
The Deerhunter
Basketball Diaries
Pulp Fiction
Apocalypse Now (used to watch it a lot, but developed Dennis Hopper nightmares and now can't watch it)
Fargo
Deliverance
Special Mention: For anyone who likes Charles Dickens
Bleak House (BBC Miniseries - by far the best Dickens adaption of any of his books ever. Ever. I watch it every six months or so. It's incredibly well made, well acted, and absolutely gripping.)