list all the dvds you have double dipped on
 

for me its been quite a few:
- fantastic 4 (for the two disc)
- spider-man 1 and 2 (1 for the 3 disc, 2 for 2.1)
- scarface (for platinum edition)
- x-men (for x-men 1.5)
- the mask (the flip disc for the pure wudescreen release)
- platoon (for the 2 disc)

soon i will be upgrading commando, face/off, robocop and taxi driver

thank god i havnt dipped on the star wars movies. i hope to god that no more get released. (the day pigs fly) im happy with my original triolgy with the theatrical and re-release on seperate discs.

Anchorman: Unrated -> Gift Set
Big -> Extended Edition
Black Hawk Down: Extended Cut -> 3 Disc Deluxe Edition
Blazing Saddles: 30th Anniversary -> Mel Brooks Collection (This was actually a downgrade.)
Dr. Strangelove: Special -> 40th Anniversary Edition
The Great Escape -> 2 Disc Special Edition
Green Mile -> 2 Disc Special Edition
Happy Gilmore -> Happy Gilmore/Billy Madison Collection
History Of The World: Part I -> Mel Brooks Collection
Reservoir Dogs: 10th Anniversary Special Edition -> 15th Anniversary Gas Can
Spaceballs -> Collector's Edition
Spider-Man 2 -> 2.1
The Wedding Singer -> Totally Awesome Edition
Young Frankenstein -> Mel Brooks Collection

That's a lot when I list them all. To be fair, most of the double dips were Google Checkout or Columbia House purchases, so they were cheap. I've mostly avoided double dipping for stupid reasons too, most of them were significant upgrades.

LOTR - own both the theatrical and extended
Cinema Paradiso - triple dip (one of each release in region 1)
Hero - bought one from Asia and the region 1 release
House of Flying Daggers - see "Hero" above
Ben Hur - sold the shorter release for the 4-disc version
Gladiator - got original release and Extended Cut
Walk the Line - sold regular release (used) and got the Limited Edition for Xmas
Seabiscuit - see "Walk the Line" above
2001: A Space Odyssey - sold original non-anamorphic release for the anamorphic upgrade
Last of the Mohicans - see "2001: A Space Odyssey" above
Clueless - sold original release for the "Whatever Edition"
Clerks - sold non-anamorphic original release for the 10th Ann. Edition
Charlie's Angels - sold original release for the Superbit Edition (used)
Basic Instinct - sold the limited edition stupid pen-in-the-box release eventually started freezing up and got replaced by the reissue special edition sans dumb packaging
American Pie - got Unrated and Ultimate Edition for free ticket (and theatrical cut, which is always funnier on comedies anyway)
40-Year-Old Virgin - got Unrated cut for Xmas and later bought theatrical cut
Four Weddings and a Funeral - sold non-anamorphic original release for anamorpihc Deluxe Edition
Pulp Fiction - sold non-anamorphic Canadian release and got Collector's Edition for xmas
Moulin Rouge - got original 2-disc release and later purchased one-disc verison for cheap to have a copy at school (I showed a scene of it that's tied into the Classics)
Troy - bought a duplicate copy cheap off ebay for school (showed a few scenes in class)
Matrix - sold each individual release (including Animatrix) and replaced with Ultimate Edition AND got Ultimate Edition with Neo head for xmas (still unopened) AND bought Ultimate Edition in HD-DVD
Superman Returns - got standard edition as part of Superman 10-disc Ultimate Collector's Tin and bought HD-DVD
The Break-up - got standard edition for birthday and bought HD-DVD
The Mask - sold non-anamorphic original release and got Collector's edition for birthday
There's Something About Mary - got oringial release for birthday and sold, later replacing with Collector's edition
Die Hard - gave away original release and replaced with Fox Five-Star release
Michale Jordan DVDs - sold original set and replaced with 20th Anniversary Collector's Edition
Raise the Red Lantern - gave away awful original Asian release, which was probably a VHS port and replaced with first anamorphic, decent release I could find (only to discover a good Region 1 release is on the way)
Crouching Tiger, Hidden Dragon - ebayed an Asian release with no special features and got a refund, replacing with the original Region 1 release and an ebayed Superbit release
2046 - got good Asian release and bought a used copy of the Region 1 release


I see most of my double-dips as upgrades, and in some cases I like having both versions.

LOTR... all three to get the uncut versions...

such a difference there... the theatrical releases just weren't the whole movie...

Army of Darkness Official Bootleg Edition for the edited scenes and the real ending...

Halloween for the TV scenes...

Das Boot twice for the Director's cut and then the entire German miniseries version...

there's more but i can't remember right now...

I knew it would be a lot, but I was surprised to see it was this many:

The Adventures of Priscilla, Queen of the Desert
Amazon Women on the Moon
Angel Heart
Apartment Zero
Asylum
Batman
Batman Returns
Batman Forever
Chicago
The Color Purple
The Crying Game
Footloose
Frankenstein / The Bride of Frankenstein
Ghost
Groundhog Day
Heathers
The Invisible Man
L.A. Story
Liar Liar
The Mask
Mommie Dearest
Moonstruck
9 to 5
Not Another Teen Movie
The Omen Collection
Pretty in Pink
Sea of Love
Some Kind of Wonderful
Strangers on a Train
Trilogy of Terror
What Ever Happened to Baby Jane?
Who Framed Roger Rabbit
Who's Afraid of Virginia Woolf?
Willy Wonka and the Chocolate Factory

...and for TV shows:

Friends (first the 'best of' collections, then the season sets)
The Twilight Zone (actually triple-dipped on this one!)
Angel, Buffy, The X-Files (double-dipped to get the slim packs)

Doubt I got all of them, but here are the one's I can recall:

Batman
Batman Returns
Batman Forever
Chicago
Mr. & Mrs. Smith
The Punisher
Smallville (Season 1) - My original set had issues due to episodes being doubled up
Spiderman 2

Star Wars Trilogy
Spider-Man 2
Gladiator
King Kong (2005)
Daredevil
Terminator 2

Amelie (bought LE Tin set while in Paris)
Dark Water
The Eye
Serenity (upgrade to HD-DVD)
Zombi 2
Ichi The Killer
Karate Kid: Part 2
Friday the 13th (bought uncut PAL version)
Matrix Reloaded/Revolutions (upgrade to HD-DVD)
Eternal Sunshine of the Spotless Mind (upgrade to HD-DVD)

The Third Man (CC to CC 2-disc)
Rashomon (R4 to CC)
Seven Samurai (R4 to CC)
Throne of Blood (R4 to CC)
Yojimbo (R4 to CC)
Patton (2-disc to 2-disc cinema classic collection)
Ran (R4 to CC)
Platoon (SE to tin-case)
Pulp Fiction (R4 1-disc to R1 2-disc)
The Shawshank Redemption (R1 1-disc to R4 2-disc but I prefer the colour of older version)
H.E.A.T. (R4 to R4 2-disc but I still keep the standard version for original art cover)

Future double-dips:
Taxi Driver
Commando

12 Monkeys
Ace Ventura
Austin Powers (for keepcase)
Back to the Future (for R2)
Batman Returns
Big Lebowski
Billy Madison
Donnie Darko
Fifth Element
Frequency (for keepcase)
The Game (for R2)
Gattaca (for Superbit)
I Am Sam (for keepcase)
Léon The Professional
Office Space
Pleasantville (for keepcase)
That Thing You Do!
True Romance
The Usual Suspects
What the Bleep Do We Know?

Alien films -picked up the Quadrilogy
Matrix films - upgraded to the Ultimate Collection
Daredevil - for the Director's Cut
Shaun of the Dead- R1 and R2
Hellboy- for the Director's Cut and Exclusive Bust
Pan's Labyrinth- R3 and the 2Discer
V For Vendetta- BB/CC/Target Exclusives
Reservoir Dogs
Dogma
Toy Story
Toy Story 2
A Bug's Life
Black Christmas
Stargate

Terminator 2 (original(?), ultimate edition, AND extreme edition)
Reservoir Dogs (10th Anniversary, 15th Anniversary)
Scarface (gift set, Platinum edition)
Pink Floyd The Wall
Fistul of Dollars
For A Few Dollars More
Clerks
Mallrats
Pantera 3 Vulgar Videos
Jackass Vol 2 and Vol 3
Office Space
American Pie
The Matrix Trilogy
Aliens (bought Quadrilogy)

Without DVDtalk the above list would be about a mile longer

Anticipated Double Dips:
Taxi Driver (Korean Superbit --> 2-discer in August; the Superbit is a beautiful DVD on my upconverting player but I'm a collector and Taxi Driver is one of my favorite films)
Kill Bill (Whole Bloody Affair?)
Pulp Fiction (15th Anniversary is probably on the horizon)
Grindhouse (considering it bombed so bad, I expect multiple releases and I'll buy them all being the Tarantino/Rodriguez sucker I am)
Chasing Amy (there seems to be a pattern with older Kevin Smith movies)

There isn't enough room on the internet! I can't help myself although I have been better on occasion lately.

Off the top of my head...

Alien films (single releases -> Alien Quadrilogy)
Halloween (regular release -> 25th Anniversary release)
M (Criterion 1-disc -> Criterion 2-disc)
Matrix Trilogy (single releases -> Ultimate Matrix)
Office Space (regular release -> special edition)
Sanjuro (Criterion non 16:9 -> 16:9)
Seven Samurai (Criterion 1-disc -> Criterion 3-disc)
Star Wars Trilogy (special editions -> original theatrical editions)
X-Men (original release -> 1.5 release)
Yojimbo (Criterion non 16:9 -> 16:9)
Various Disney animation (limited non 16:9 -> Platinum releases)

Just off the top of my head

LOTR
Spaceballs
Batman
Batman Returns
Club Dread
Scarface
Matrix Trilogy
X-men

Hmm, thought I had more, I'll look through my collection after work.

Aeon Flux TV (not quite a double dip, but from the OOP 3-episode DVD to the full series)
Aeon Flux (DVD -> Blu Ray)
Charlies Angels (DVD -> UMD) - Awaiting Blu Ray for triple dip :(
Charlies Angels 2 (DVD -> UMD) - Awaiting Blu Ray for triple dip :(
Charlie and the Chocolate Factory (DVD -> HDDVD)
Club Dread (Rated DVD -> Unrated DVD)
Chronicles of Riddick (DVD -> HDDVD)
Dukes of Hazzard (DVD -> HDDVD)
Fantastic Four (DVD -> Blu Ray)
Fast and the Furious (DVD -> UMD -> HDDVD) - Triple dip :(
Fast and the Furious 3 (DVD -> HDDVD)
Evil Dead (UMD -> DVD)
Fear and Loathing in Las Vegas (Criterion DVD -> HDDVD)
Fifth Element (Superbit -> Ultimate) - Awaiting remastered blu ray for triple dip :(
Final Fantasy Advent Children (Import UMD -> US DVD) - Awaiting blu ray for triple dip :(
From Dusk Til Dawn (UMD -> DVD)
Haute Tension (Import DVD -> US DVD)
House of 1000 corpses (UMD -> DVD)
House of Wax (DVD -> HDDVD)
Into the Blue (DVD -> Blu Ray)
King Kong (DVD -> HDDVD)
Land of the Dead (DVD -> HDDVD)
Layer Cake (DVD -> UMD -> Blu Ray) - Triple dip :(
Kill Bill v1 (DVD -> UMD -> Import DVD) - Triple dip - awaiting HD release for quad-dip :(
Kill Bill v2 (DVD -> UMD) - Awaiting HD release for triple dip :(
Lucky # Slevin (DVD -> HDDVD)
Matrix (DVD -> Ultimate boxset -> HDDVD) - Triple dip :(
Mr. and Mrs. Smith (DVD -> Unrated DVD) - Awaiting blu ray for triple dip :(
Once upon a time in mexico (DVD -> UMD)
Hellboy (UMD -> DVD -> Blu ray) - Triple dip :(
Pirates of the caribbean (DVD -> Blu Ray)
Pirates of the caribbean 2 (DVD -> Blu Ray)
Pulse (DVD -> HDDVD) - Yes, THAT pulse.
Resident evil (DVD -> UMD) - Awaiting Blu Ray
Resident Evil 2 (DVD -> UMD -> Blu Ray) - Triple dip :(
Serenity (DVD -> HDDVD)
Sin City (DVD -> UMD -> 2-disc DVD) - Awaiting quad-dip on Blu Ray :(
Sky Captain (DVD -> HDDVD)
Super Troopers (DVD -> UMD)
Thir13en Ghosts (DVD -> UMD)
Tomb Raider (DVD -> UMD -> HDDVD) - Triple dip :(
Ultraviolet (DVD -> Blu Ray)
Underworld Evolution (DVD -> Blu Ray)
Underworld (DVD -> Extended DVD)
Hero (DVD -> Ultimate Edition -> UMD) - Triple dip :(
Kung Fu Hustle (Import DVD -> UMD -> Blu Ray) - Triple dip :(
Oldoy (Import 2-disc DVD -> UMD -> Import 4-disc box -> US DVD Tin set) - Quad dip :(
Tom Yum Goong (VCD -> DVD)
Batman Begins (DVD -> HDDVD)
Corpse Bride (DVD -> HDDVD)
District B13 (DVD -> Blu Ray)
Ghost in the Shell: Innocence (Import DVD -> US DVD -> Blu Ray) - Triple dip :(
Swordfish (DVD -> HDDVD)
SWAT (DVD -> UMD -> HDDVD) - Triple dip :(
Training Day (DVD -> HDDVD)
V for Vendetta (DVD -> HDDVD)
Van Helsing (DVD -> HDDVD)
Total Recall (UMD -> DVD)
Pulp Fiction (DVD -> UMD)
Ghost in the Shell (DVD -> UMD)
Gone in 60 Seconds (UMD -> DVD)
Dawn of the Dead 2004 (UMD -> DVD) - Awaiting HDDVD for Triple dip :(
Spiderman 2 (DVD -> UMD)
Saw (UMD -> DVD)
Da Ali G Show (UMD -> DVD)
Final Fantast Spirits Within (DVD -> UMD -> 2-disc DVD) - Awaiting blu ray for quad-dip :(
Akira (DVD -> UMD)
Appleseed (DVD -> UMD)
Cowboy Bebop movie (DVD -> UMD)
Cowboy Bebop series (DVD -> UMD) - V1
American Pie (UMD -> DVD)
Cabin Fever (UMD -> DVD)
Not another teen movie (DVD -> UMD)
Mezzo Forte (Rated DVD -> Unrated DVD)
Kite (Rated DVD -> Unrated DVD)
Neon Genesis Evangelion (Standard DVDs -> Remastered DVDs)
Lupin III (Individual releases -> Box set)
Armitage (DVD -> UMD)

Do I win any kind of award for "Most double/triple dips on some of the worst movies ever made"? ;)

Not until you buy 6 copies of the worst film ever made (Ghost Rider) just to get all the store exclusives.

I'm easy. Just one title: Army of Darkness (or, as it says on the dvd cover Bruce Campbell vs. Army of Darkness). Double-dipped on the Bootleg
Edition for the Boomstick Edition. My reason: Better transfer (on the theatrical cut) as opposed to the muddy transfer of the director's cut found on the former.

I seem to have a pretty good track record for *not* double-dipping. Either I have been lucky enough to have not bought the initial release and to just get the subsequent special edition or I have not been inclined to repurchase a movie that I already own in an earlier edition.

EDIT: Crap, I forgot about V for Vendetta. Not really a double-dip for me in the traditional sense, but I did buy two copies of the 2-disc. I bought the version from Best Buy (Canada) for the lenticular cover and the graphic novel reprint. Then I got the version from Best Buy (US) for the scaled replica of V's mask and the art cards. I also bought a version from Future Shop for the free steelbook case, but I returned it (without the steelbook case of course .. *ahem).

Im very near to it... actually its seven ( counting futureshop's exclusive inpack cd-rom)

LOTR
Star Wars Trilogy
Vfor Vendetta
The Ring (US)
The Punisher
The Matrix trilogy
Nightmare On Elm Street series
Spider-Man 2
Sin City
Hellboy
Daredevil
Unbreakable
LXG
Batman series (Burton/Schumacher)
Shiri
Olboy (R2 double disc for R1 tin)
Battlestar Galactica (original series, boxet for Cylon Head)
Top Gun
Inside Man (vanilla R2 for R1 with director commentary)
Armageddon
The Rock
Ferris Bueller's Day Off
Mission: Impossible
Predator
Dogma
Jay and Silent Bob Strike Back
Mallrats
Almost Famous
Evil Dead
Evil Dead 2
Army of Darkness
Trainspotting
Star Trek II
Goodfellas
Crash
Ghost in the Shell
Pearl Harbor
Band of Brothers (regular boxset for tin)
Kingdom of Heaven
Back to the Future
Die Hard trilogy
Sympathy for Mr Vengeance/Oldboy/Lady Vengeance (individual releases for R2 boxset)

Evil Dead 2
Fletch
Butch Cassidy and the Sundance Kid
Seven Samurai
Serenity (DVD --> HDDVD)
Batman
The Big Lebowski
LA Story
Dr. Strangelove
Terminator 2
Major League
The Matrix (DVD --> HDDVD)
Matrix Reloaded (DVD --> HDDVD)
Casablanca (DVD --> SE --> HDDVD)
Silence of the Lambs (Criterion --> SE)

Paris, Texas
The Rules of the Game
A Woman Is a Woman
Breathless
Ugetsu
400 Blows
A bunch of Chabrol

Army of Darkness
Bjork Volumen -> Bjork Great Hits (video collections)
Casablanca
Evil Dead
Exorcist
Lord of the Rings:FotR (the first movie only, the other two I just got the extended versions)
Memento
Monster's Ball
Monty Python and the Holy Grail
Reservoir Dogs
Sixth Sense
Tremors -> Tremors Attack Pack
Unforgiven


Early on in my collecting, I was more prone to double dip. Now, there's got to a REALLY good reason to buy the same movie again (like getting Tremors 1-4 for $15 when I already owned the first movie).

13 Monkeys
Akira
Amistad
Angel Heart
Apocalypse Now
Big Lebowski
Blues Brothers
Boondock Saints
Carlito’s Way
Cast Away (steelbook)
Clerks
Crouching Tiger, Hidden Dragon
Dances with Wolves
Desperado
Donnie Darko
Fargo
Fifth Element
Fight Club (steelbook)
Four Weddings and a Funeral
Get Shorty
Gladiator
Hard Boiled
Hero
House of Flying Daggers
It's a Wonderful Life
Jurassic Park
Killing Zoe
King Kong
Lawrence of Arabia
Léon: The Professional
Long Good Friday
Lost World: Jurassic Park
Mallrats
Maltese Falcon
Man Who Fell to Earth
Monty Python and the Holy Grail
New York: A Documentary Film
Notting Hill
Office Space
Once Upon a Time in Mexico
Pearl Harbor
Pink Floyd: The Wall
Platoon (steelbook)
Pulp Fiction
Red Dragon
Reservoir Dogs
Road to Perdition
Ronin
Silence of the Lambs
Snatch
Swingers
Terminator 2
Titanic
Triplettes de Belleville
Toy Story
Toy Story 2
Usual Suspects
Wicker Man
Wizard of Oz

Pending Double Dips:
Blade Runner
Flash Gordon
LA Confidential

Is that a sequel to 12 Monkeys?