I though Sin City was virtually shot for shot from the comic, so I'd vote for that, if you count a comic book (or graphic novel) a book.

Pet Semetary, because the movie didn't fail to include the concept of death and its perception by children-and adults.

No Country for Old Men

The Thornbirds did a fantastic job of showing the desires of the priest clashing against his morals. Man! What a struggle he went though!!!!

The Notebook for sure!

I'll have to go with The Green Mile.

I found that Mystic River was the most faithful adaptation. That being said, I hated the book and hated the movie as well.

Fight Club changed a few things but overall retained the ideal and philosophy of the book.

I enjoyed the movie version of "A Passage to India" better than the book. I thought that the cinematography in the movie was excellent.

Shawshank Redemption

The book The color purple actualy is far better than the movie but the movie is damn good so the book was off the chain...

Comic Book (graphic novel anyways) adaptations: 300 & Sin City RULE Non-illustrated books: I would have to say Dune does a pretty good job of setting the epic scene. Godfather was excellent. Goodfellas, The Outsiders, Fight Club, Lord of the Flies, Empire of the Sun, the Shining are some of my faves. If by "justice" you mean sticking to the letter of the book then some of those are out, but I think they're all good movies that live up to the name

The Da Vinci Code was almost word for word accurate. They left out one small detail, but it didn't effect the story any in the least.

I'd say the Lord of the Rings movies.

Sophies Choice. Excellent book and movie.

Pet Semetary did a good effort at including the book's underlining concept of the fear of death into the movie, and what is otherwise often shoddy or totally ignored in Stephen King books which usually serve to outline the main concept of the story's occurrences was told through poignant and freaky scenes and flashbacks. Even though the film was made for shock value, it didn't forget its roots, and I totally appreciate it. A nice and fun film. The same could be said of Misery, which totally didn't fail to build suspense, just like in the book. Also, Trainspotting. Not as crude or daring as the book of course, but they certainly included all the important parts to relay the story perfectly, and did remain pretty damn bold. While they changed a few things around, like excluded some characters or failed to respect some of the physical descriptions of the book, I think it was great, and it has style. Bram Stoker's Dracula, Love Never Dies. The atmosphere and scenery is as classy and posh as that depicted in the book, denoting a fascinating job at transitioning it to film form, and as well, the concept of the book, which in big part was portraying the vampire throughout the fear that the characters had of him, and other strong emotions was very well relayed in the film. A well crafted masterpiece if you ask me.

The Celestine Prophecy. The movie was horrible, but the book was incredible!

in addition to the fantastic examples from other abers i liked: 1. pride & prejudice by jane austen starring keira knightley. 2.godfather by mario puzo. 3. alice in wondeland by lewis carroll (the disney version). 4. catch 22 by joseph heller. 5. charlie & the chocolate factory by roald dahl. the original with gene wilder. 6. clockwork orange by anthony burgess. 7. do androids dream of electric sleep? (bladerunner) by philip k. dick. 8. the english patient by michael ondaatje. 9. heart of darkness (apocalypse now) by joseph conrad. 10. les liaisons dangeureuses (valmont, dangerous liaisons) by eveline andreani 11. watership down by richard adams 12. to kill a mockingbird by harper lee 13. one flew over the cuckoos nest by ken kesey. there are many others...but here are just a few that left their mark.