I don't quite like English word "musical" because it describes both the genre and serves as an adjective, hence lot of confusion. What's Up! kdrama was described as "musical" and it was not. I use the distinction from my own mother tongue - musicals and music films (plus my language has other word for a describing adjective for ie. "musical career").
List is made of musicals (as filmed, since my list of watched stage productions is still very shy), music films I watched, all in alphabetical order to avoid preferences.
Hopefully the list will grow. I might forget some as well.
1776
A Star Is Born
A Star Is Born
Across The Universe (?)
Aladdin
All That Jazz
An American in Paris
Anastasia
An American in Paris
Anastasia
Anything Goes
Beauty And The Beast
Brigadoon
Brigadoon
Cabaret
Cats
Cats
Chicago
Crybaby
Devdas
Devdas
Dreamgirls
Duck Soup
Enchanted
Duck Soup
Enchanted
Evita
Fame
Fiddler On The Roof
Finian's Rainbow
Footloose (only danced, right?)
Frozen
Footloose (only danced, right?)
Frozen
Funny Girl
Gentlemen Prefer Blondes
Gigi
Go Go 70!
Go Go 70!
Grease
Gypsy
Hedwig and the Angry Inch
Hedwig and the Angry Inch
Hair
Hairspray
Into the Woods (part of)
Into the Woods (part of)
Jailhouse Rock
Jesus Christ Superstar
Jodhaa Akbar
Jodhaa Akbar
Kiss Me Kate
Labyrinth
Les Miserables
Labyrinth
Les Miserables
Little Shop Of Horrors
Mamma Mia!
Mary Poppins
Meet Me In St. Louis
Monstar!
Monstar!
Moulin Rouge!
Mulan
Mulan
My Fair Lady
Oklahoma!
Oklahoma!
Oliver!
Pitch Perfect
Princess and the Frog
Purple Rain
Pitch Perfect
Princess and the Frog
Purple Rain
Rent
Seopyeongje
Seopyeongje
Seven Brides For Seven Brothers
Singin' In The Rain
Sister Act 1&2
Some Like It Hot
Step Up! (well, they danced...)
Sunny
Some Like It Hot
Step Up! (well, they danced...)
Sunny
Sweeney Todd
Tangled
The Band Wagon
The Doors
The Doors
The Hunchback of Notre-Dame
The King And I
The Nightmare Before Christmas
The Phantom of The Opera
The Rocky Horror Picture Show
The Singing Detective
The Slipper and The Rose: The Cinderella Story
The Singing Detective
The Slipper and The Rose: The Cinderella Story
The Sound Of Music
The Umbrellas of Cherbourg
The Umbrellas of Cherbourg
The Wizard of Oz
Thriller
Top Hat
Velvet Goldmine
Victor Victoria
Velvet Goldmine
Victor Victoria
West Side Story
What's Up!Willy Wonka & the Chocolate Factory (1971)
Stage productions:
Cats
Jekyll & Hyde (K)
La Cage aux Folles (K)
Last Empress (K)
Man of La Mancha (K)
Miss Saigon
Mozart! (K)
Rent (K)
Spring Awakening
Wicked
And few in fragments available here and there (if you put a LOT of efforts to find) so I don't list them here.