I should point out that there's often more than just one new mistake per film.
Commando [LOADS]
Copland
The Empire Strikes Back
Half-Baked
In and Out
October Sky
Star Wars
When Harry Met Sally
Back to the Future
Clueless
The Goonies
The Man in the Iron Mask
The Natural
Poltergeist
Titanic
Anaconda
Ever After
The Negotiator
Pee Wee's Big Adventure
Poltergeist
Pulp Fiction
Rocketman
Romy and Michelle's High School Reunion
Terminator 2
The Man With One Red Shoe
While You Were Sleeping
A Night at the Opera
Airheads
American History X
Anastasia
Austin Powers
The Avengers
Back to the Future
Back to the Future 2
Batman Returns
Beauty and the Beast
Braveheart
Bullitt
The Cannonball Run
Close Encounters of the Third Kind
Cool Runnings
Dazed and Confused
Dirty Dancing
The Duel
Ever After
Evita
The Fugitive
George of the Jungle
The Godfather
Godzilla
Happy Gilmore
I Know What You Did Last Summer
I.Q.
In Cold Blood
Independence Day
Iron Eagle Part I
Jaws
The Jesse Ventura Story (by TBS)
Judge Dredd
Jurassic Park
Kingpin
Kuffs
Legends of the Fall
Lethal Weapon
The Man in the Iron Mask
The Little Mermaid
Mission: Impossible
Mortal Kombat: Annihilation
The Odd Couple 2
Overboard
Passenger 57
The Peacemaker
Practical Magic
Pulp Fiction
Raising Arizona
Return of the Jedi
The Rocky Horror Picture Show
Rudy
Saving Private Ryan
Six Days, Seven Nights
Snake Eyes
Space Oddessy
Steel Magnolias
Tango & Cash
Terminator 2
The Three Musketeers [1973]
Titanic
Tommy Boy
Top Gun
The Truman Show
Twelve Angry Men
Twister
Wildcats
Willow
With Honors
A League Of Their Own
A Very Brady Sequel
Air Force One
Aliens
Amistad
Anastasia
Apollo 13
Armageddon
Beverly Hills Ninja
Bull Durham
Casper
City of Angels
Critters
Die Hard
Die Hard 2
Eraser
Escape From LA
Falling Down
Fantasia
Fearless
For Your Eyes Only (in "Bond")
Godzilla
Good Will Hunting
Goodfellas
Grease
I Know What You Did Last Summer
In and Out
Independence Day
Indiana Jones and the Last Crusade
Iron Eagle III
Jackie Brown
Jurassic Park
Michael
Mission: Impossible
My Best Friend's Wedding
Now and Then
Red Corner
Roadhouse
Rocky 3
Slapshot
Smokey & The Bandit
Snake Eyes
Species 2
Swingers
The Devil's Own
The Man in the Iron Mask
The Object of My Affection
The Shining
The Sting
The Wedding Singer
Titanic
Top Gun
Triumph of the Will
Twister
Urban Legends
Wildcats
Animal house
Armageddon
Before Sunrise
Cosa Nostra
Desperado
Die Hard with a Vengeance
Far and Away
First Knight
Home Alone 3
Indiana Jones and the Last Crusade
Jurassic Park
Little Mermaid
Mortal Kombat: Annihilation
Now and Then
Raiders of the Lost Ark
Sink the Bismarck
Stand by me
Terminator 2
The Money Pit
Three Ninjas
Titanic
Tommy Boy
Turbulence
When Harry Met Sally