The movies represented in the Great movie Ride:
Casablanca
Mary Poppins
Raiders of the Lost Ark
Aliens
Fantasia
Footlight Parade
Tarzan
Clint Eastwood/John Wayne westerns (I recommend Outlaw Josie Wales and True Grit)
The Public Enemy
Singin' In the Rain
Let's not forget "The Wizard of Oz", and "The Searchers" as others that are actually represented in the ride.
I believe that the OP wanted the list of the movie that are in the finale right now, so here we go:
The Cure
The Rink
Behind the Screen
The Great Train Robbery
The Birth of a Nation
The Ten Commandments
The Kiss
Wings
The Jazz Singer
Show Boat
42nd Street
Dirty Dancing
Yankee Doodle Dandy
Grease
Jailhouse Rock
Sister Act
Chicago
Babes in Arms
Cabin in the Sky
Mary Poppins
Snow White and the Seven Dwarfs
Anchors Aweigh
Airplane!
Saturday Night Fever
Cops
Take the Money and Run
Down and Out in Beverly Hills
A Plumbing We Will Go
Blazing Saddles
Arthur
Bright Eyes
A Night at the Opera
Three Men and a Baby
Broadcast News
Arsenic and Old Lace
Trading Places
Beverly Hills Cop
The Godfather
The Godfather Part II
Taxi Driver
Shanghai Knights
True Grit
The French Connection
Pirates of the Caribbean: The Curse of the Black Pearl
North by Northwest
Raiders of the Lost Ark
San Francisco
Butch Cassidy and the Sundance Kid
Never Say Never Again
The Terminator
Rambo: First Blood Part II
Alien
A Nightmare on Elm Street
King Kong
Young Frankenstein
The Wizard of Oz
The Chronicles of Narnia: The Lion, the Witch and the Wardrobe
2001: A Space Odyssey
Star Trek II: The Wrath of Khan
Fantasia
Top Gun
The Absent-Minded Professor
Platoon
The Karate Kid
The Bridge on the River Kwai
Amadeus
Citizen Kane
Chariots of Fire
10
Tootsie
Funny Girl
Giant
Pal Joey
The Public Enemy
Adam's Rib
Gone with the Wind
From Here to Eternity
Shakespeare in Love
Pearl Harbor
Wuthering Heights
Notorious
The Way We Were
Lady and the Tramp
Who Framed Roger Rabbit
Grand Hotel
Queen Christina
A Place in the Sun
Stagecoach
Sunset Boulevard
The Grapes of Wrath
Gentlemen Prefer Blondes
Casablanca
A Streetcar Named Desire
Klute
Roman Holiday
Gilda
Hud
Good Morning, Vietnam
Apocalypse Now
All About Eve
Lawrence of Arabia
Doctor Zhivago
Armageddon
Finding Nemo
Thelma and Louise
High Noon
Unforgiven
Honey, I Shrunk the Kids
Lassie Come Home
Patton
Malcolm X
Forrest Gump
It's a Wonderful Life
The Sound of Music
The Ten Commandments
Ben-Hur
Star Wars Episode IV: A New Hope
I googled TGMR and found all of these. Unless your trip is a long way off, then you might have a hard time watching all of them!
Good luck!