Jaws
Book by Peter Benchley
Movie directed by Steven Spielberg (1975)

The Princess Diaries
Book by Meg Cabot
Movie directed by Gary Marshall (2001)


The Last of the Mohicans
Book by James Fenimore Cooper
Movie directed by Michael Mann (1992)

Master and Commander: The Far Side of the World
Book by Patrick O'Brien
Movie directed by Peter Weir (2003)

Harry Potter Films
Books by JK Rowling
Movies - 2001, 2002, 2004, 2005, 2007, 2008, 2010

The Chronicles of Narnia: The Lion, the Witch and the Wardrobe
Book by C.S. Lewis
Movie - 2005

Lord of the Rings
Books by J.R.R. Tolkien
Movies - 2001, 2002, 2003

The Wizard of Oz
Book by L. Frank Baulm
Movie - 1939

Ella Enchanted
Book by Gail Carson Levine
Movie - 2004

A Series of Unfortunate Events
Books by Lemony Snicket
Movie - 2004

The Phantom of the Opera
Book by Gaston Leroux
Movie - 2004

The Princess Bride
Book by William Goldman
Movie - 1987

Stardust
Book by Neil Gaiman
Movie - 2007

The Notebook
Book by Nicholas Sparks
Movie directed by Nick Cassavetes (2004)

Bridget Jone's Diary
Book by Helen Fielding
Movie directed by Sharon Maguire (2001)

A Simple Plan
Book by Scott Smith
Movie directed by Sam Raimi (1998)

For the sake of this spot, I will exclude comic book adaptations from this list.

L.A. Confidential
Book by James Ellroy
Film directed by Curtis Hanson (1997)

Eaters of the Dead
Book by Michael Crichton
Film (The 13th Warrior) directed by John McTiernan (1999)

Dune
Novel by Frank Herbert
Film directed by David Lynch (1984)
Miniseries directed by John Harrison (2000)

The Wonderful Wizard of Oz
Book by L. Frank Baum
(in addition to what iluvjesse posted, above:)
Film directed by Otis Turner (1910)
Film directed by Larry Semon (1925)
Film directed by Ted Eshbaugh (1933)
Additional inferior versions too numerous to list here (on average, at least two adaptations of this book are made every decade)

Howl's Moving Castle
Book by Diana Wynne Jones
Film by Hayao Miyazaki (2004)

The Sword in the Stone
Novel by T.H. White
Film directed by Wolfgang Reitherman (1963)

The Maltese Falcon
Novel by Dashiell Hammett
Film directed by Roy Del Ruth (1931)
Film directed by John Huston (1941)

Bambi
Novel by Felix Salten
Film directed by David Hand (1942)

The Thin Man
Novel by Dashiell Hammett
Film directed by W.S. Van Dyke (1934)

I'll come back to this. Our list in this forum thread is going to end up being very, very long, of course, particularly if we start to include classics of English literature (any Shakespeare, any Stevenson, and the like), as any of those are likely to have a dozen or more film versions.

Thanks iluvjesse, neeki, and harold! And feel free to add comic book adaptations and classics. I know Harold, it will be long -- but it will be GREAT! *invoking Jack Black enthusiasm*

Girl, Interruped
Book by Susanna Kaysen
Film directed by James Mangold (1999)

Bridges of Madison County
Book by Robert James Waller
Film directed by Clint Eastwood (1995)

The Color Purple
Book by Alice Walker
Film directed by Steven Spielberg (1985)

Under the Tuscan Sun
Book by Frances Mayes
Film directed by Audrey Wells (2003)

Little Women
Book by Louisa M. Alcott
Film directed by George Cukor (1933) [starring Katharine Hepburn]
Film directed by Mervyn LeRoy (1949) [starring Elizabeth Taylor and Janet Leigh]
Film directed by Gillian Armstrong (1994) [starring Winona Ryder, Claire Daines, Kirsten Dunst, Christian Bale, Gabriel Byrne,....]

The Golden Compass/His Dark Materials:Northern Lights
Book by Phillip Pullman
Movie directed by Chris Weitz (2007)

Emma
Book by Jane Austen
-Clueless (adaptation of Emma) film directed by Amy Heckerling (1995) [starring Alicia Silverstone, Brittany Murphy, Paul Rudd,...]
-Film directed by Douglas McGrath (1996) [starring Gwyneth Paltrow]

Pride & Prejudice
Book by Jane Austen
TV Series directed by Simon Langton (1995) [starring Colin Firth]
Bride & Prejudice film directed by Gurinder Chadha (2004) [starring Aishwarya Rai]
Film directed by Joe Wright (2005) [starring Keira Knightley]

SENSE & SENSIBILITY
book by Jane Austen
2008 upcoming miniseries
2008 upcoming latino version:Sense & Sensibilidad
1995 -Emma Thompson, Kate Winslet and Hugh Grant
1990 (Sensibility and Sense)
1971 version

A Walk To Remember
Book by Nicholas Sparks
Movie (2002) Directed by Adam Shankman

Da Vinci Code
Book by Dan Brown
Movie (2006) Directed by Ron Howard

Eragon
Book by Christopher Paolini
Movie (2006) Directed by Stefen Fangmeier

All The King's Men
Book by Robert Penn Warren
Movie (2006) Directed by Stephen Zaillian

The Amityville Horror
Book by Jay Anson
Movie (1979) Directed by Stuart Rosenburg
Movie (2005) Directed by Andrew Douglas

Angela's Ashes
Book by Frank McCourt
Movie (1999) Directed by Alan Parker

The Other Boleyn Girl
Book by Philippa Gregory
Movie (2008) Directed by Justin Chadwick

Beowulf
Poem by Anonymous
Movie (2007) Directed by Robert Zemeckis

Message in a Bottle
Book by Nicholas Sparks
Movie (1999) Directed by Luis Mandoki

Brokeback Mountain
Book by Annie Proulx
Movie (2005) Directed by Ang Lee

The Client
Book by John Grisham
Movie (1994) Directed by Joel Shumacher

A Painted House
Book by John Grisham
Movie (2003) Directed Alfonso Arau

Of Mice and Men
Book by John Steinbeck
Movie (1939) Directed by Lewis Milestone
Movie (1981) Directed by Reza Badiyi
Movie (1992) Directed by Gary Sinise

The Grapes of Wrath
Book by John Steinbeck
Movie (1940) Directed John Ford
Movie (1991) Directed by Kirk Browning, Frank Galati

Cold Mountain
Book by Charles Frazier
Movie (2003) Directed by Anthony Minghella

The Devil Wears Prada
Book by Lauren Weisberger
Movie (2006) Directed by David Frankel

The Green Mile
Book by Stephen King
Movie (1999) Directed by Frank Darabont

Frankenstein
Book by Mary Shelley
Movie (1931) Directed by James Whale
(Young Frankenstein) Movie (1974) Directed by Mel Brooks
Movie (1994) Directed by Kenneth Branagh

Freaky Friday
Book by Mary Rodgers
Movie (2003) Directed by Mark Waters

Garfield (comic)
Comic by Jim Davis
Movie (2004) Directed by Peter Hewitt

The Good German
Book by Joseph Kanon
Movie (2006) Directed by Steven Soderbergh

Great Expectations
Book by Charles Dickens
Movie (1998) Directed by Alfonso Cuaron

Jumanji
Book by Chris Van Allsburg
Movie (1995) Directed by Joe Johnston

Practical Magic
Book by Alice Hoffman
Movie directed by Griffin Dunne (1998)

Catch Me If You Can
Book by Frank Abagnale, Jr. & Stan Redding
Movie directed by Steven Spielberg (2002)

Black Hawk Down
Book by Mark Bowden
Movie directed by Ridley Scott (2001)

Forrest Gump
Book by Winston Groom
Movie directed by Robert Zemeckis (1994)

The Shawshank Redemption
(Rita Hayworth and the Shawshank Redemption, from Different Seasons)
Book by Stephen King
Movie directed by Frank Darabont (1994)

Stand By Me
(The Body, from Different Seasons)
Book by Stephen King
Movie directed by Rob Reiner (1986)

The Bourne Identity/Supremacy/Ultimatum
Books by Robert Ludlum
Movies directed by Doug Liman (Identity, 2002), Paul Greengrass (Supremacy, 2004 and Ultimatum, 2007)

Divine Secrets of the Ya-Ya Sisterhood
Book by Rebecca Wells
Movie directed by Callie Khouri (2002)

Fried Green Tomatoes
(Fried Green Tomatoes at the Whistle Stop Cafe)
Book by Fannie Flagg
Movie directed by John Avnet (1991)

Seabiscuit
(Seabiscuit: An American Legend)
Book by Laura Hillenbrand
Movie directed by Gary Ross (2003)

The 5th Wave
Novel by Rick Vancey
Movie directed by J. Blakeson (2016)

The Maze Runner: The Scorch Trials
Novel by James Dashner
Movie directed by Wes Ball

And Then There Were None
Novel by Agatha Christie
Movie directed by Rene Clair (1945) (Starring Barry Fitzgerald, Walter Huston and Judith Anderson)
Film (Ten Little Indians) directed by George Pollock (1966) (Starring Shirley Eaton)
Film (Ten Little Indians) directed by Peter Collinson (1974) (Starring Richard Attenborough, Herbert Lom, Elke Sommer, Oliver Reed, and Orson Welles)
Miniseries directed by Basi Akpabio (2016) (Starring Charles Dance, Toby Stephens, Burn Gorman, Aidan Turner, Miranda Richardson, Sam Neill, and Douglas Booth)

The BFG
Novel by Roald Dahl
Film directed by Brian Cosgrove (1989)
Film directed by Steven Spielberg (2016)

Miss Peregrine's Home for Peculiar Children
Novel by Ransom Riggs
Film directed by Tim Burton (2016)