What's your favorite movie soundtrack?

Tron 2. Daft Punk without lyrics is perfect for me.

Oh Brother Where Art Thou is a good one.

A few of my favs, in no particular order:
The Lord of the Rings trilogy
Tron: Legacy
Oblivion
Gladiator
Star Wars (especially Episode I)
Interestellar

Cosmos
Blade Runner
Vangelis, enough said.

Conan The Barbarian by Basil Polidouris
Aliens by James Horner
The Good The Bad And The Ugly by Ennio Morricone

Trainspotting
Hackers
Atomic Blonde
Go
Grease
The Big Lebowski
The Crow
Mary Poppins

Dune (1984)
The Fifth Element
- Toto’s Dune score is objectively amazing, and also that one Brian Eno track was perfect. Good pick.

A few that spring to mind...
Vertigo
Psycho
Twin Peaks: Fire Walk With Me
Mulholland Drive
All 3 LOTR films
Star Wars OT
Indiana Jones (especially Raiders)
The Sweet Smell of Success
- Oh yes, I remember the Twin Peaks movie having the Cherubini requiem. Awesome stuff
  
  Ah, I never knew what that piece was. It's fantastic though, a perfect fit along with all of Badalamenti and Lynch's music.
  My particular favourite is the weird drone of The Pink Room, turned up loud, but it's all good!

2001: A Space Odyssey. Ligeti scared the shit out of me as a kid, and I love it.

Either Pulp Fiction or Judgment Night.
- Judgement Night is awesome!
  
  Fuck yeah. Soundtrack is better than the movie. Lol

Lock stock and two smoking barrels
o’ brother where art thou
tron (daft punk)

Tron by Draft Punk
Lord of the Ring
Interstellar
The Graduate

My favorite is the soundtrack to Princess Mononoke, composed by Joe Hisaishi.

Koyaanisqatsi
Solaris (the remake)
Whiplash
Broken Flowers
The Fountain
Pirates ot Caribbean
- Props for Koyaanisqatsi
  I too like subjecting my neighbors to hours of Philip Glass albums.

Guardians of the Galaxy 1 and Footloose are probably my favorites of all time. It's really hard to find soundtracks with a better collection of absolutely amazing songs imo.

Escape from New York.
Oldboy.

Pump Up The Volume

The score for Star Trek II: the wrath of khan is absolutely amazing
- James Horner nailed the starship motif. I enjoy the various other composers' works as well, but Horner is my top for Trek.
  Howard Shore for all the Tolkien work. His music alone will paint the image of Middle Earth in my head.
  And Hans Zimmer has some stuff I love, like Time, but he did his best job imo for Dune.

Already lots of LOTR & Tron: Legacy here. Not seeing much love for animated film scores, so on that note & in no particular order:
How to Train Your Dragon trilogy, 1 is personal favorite
Kung Fu Panda trilogy, 2 is ~~so fucking good oh my god~~ personal favorite
The Lion King (1994)
Spirited Away
My Neighbor Totoro
Spirit: Stallion of the Cimarron
The Super Mario Movie
Finding Nemo
Up
A couple of these have great soundtracks, too, but I do love a good score.

Terminator 2 Theme
Not sure if "favorite", I can't recall every soundtrack I've heard, but definitely one of my top favorites and the first I thought of.
- You Could be Mine was the perfect choice for the moped scene.

Highlander

Animatrix. It's been in my regular listening rotation for probably over 15 years now.

To Live and Die in LA by Wang Chung is another great one that hasn't been mentioned yet

Into the wild

Spider-Man: Into the Spiderverse
Not a movie but all 3 Beastars openings sound so good

Haven’t seen anyone mention Cinema Paradiso or The Good the Bad and the Ugly. Both are wildly different. Ennio Morricone is a genius.
There’s also The Incredibles - Michael Giacchino The Greatest Showman - Various Artists
Saving Private Ryan - John Williams
The Prince of Egypt - Hans Zimmer
The Gospel of John - Jeff Dann (great middle eastern vibe)

Tron Legacy.
One of the few soundtracks I can listen from front to back.

Gross Pointe Blank

Clerks

Bad Company (Trevor Rabin)
Starship Troopers (Basil Poledouris)
Star Trek 2009 (Michael Giacchino)
The Mask Of Zorro (James Horner)

Tron Legacy
The Crow
Shrek 2
Sucker Punch

The crow

Spawn The Album. Such great collabs! https://tidal.com/album/33972202?u
Also
The Horse Whisper https://open.spotify.com/album/5TkEej0XgyiQyWHfXwrE9w
- Spawn soundtrack is the best, no question

Amélie
- I was a hipster in high school and I used to have Amelie on my iPod classic. Was such a tiny screen. :)
  
  Give it a listen the whole album still hits!

Last Samurai is super chill

Things To Do In Denver When You’re Dead

Velvet Goldmine

Blade Runner - Vangelis
Miracle Mile - Tangerine Dream
That Thing You Do! - Tom Hanks, Adam Schlesinger, others

Fight Club, Amélie, The Crow (original), To Live and Die in LA

Fight Club.

The Matrix soundtrack

        "Rock Is Dead" by Marilyn Manson 
    "Spybreak! (Short One)" by Propellerheads 
    "Bad Blood" by Ministry 
    "Clubbed to Death (Kurayamino Mix)" by Rob D 
    "Prime Audio Soup" by Meat Beat Manifesto 
    "Leave You Far Behind" by Lunatic Calm 
    "Mindfields" by The Prodigy 
    "Dragula (Hot Rod Herman Remix)" by Rob Zombie 
    "My Own Summer (Shove It)" by Deftones 
    "Ultrasonic Sound" by Hive –
    "Look to Your Orb for the Warning (Radio Edit)" by Monster Magnet 
    "Du hast" by Rammstein 
    "Wake Up" by Rage Against the Machine

Desperado
Batman (both Elfman and Prince)
Last Action Hero
The Matrix
LOTR
The Fifth Element
Terminator 2

Scream 3
Django unchained
American pie
Spiderman into the spider verse

Kill Bill Volume 2! And I like the Carol (2015) soundtrack (totally not a lesbian).

So many good ones, I don't know how to choose.
Interstellar 55555 (slightly cheating)
Perfect Blue
The Green Knight
The Girl With All the Gifts
Dune (the original)
Densha Otoko
Spirited Away
Dark Knight
Interstellar
The Last of Us (game and show)
Innocent Venus

My favourite is
Suzume feat. Toaka - RADWIMPS

Life Aquatic
Lady Killers

A few I did not see in the thread yet,
Repo Man (1984)
Jungle Book (1967)
The Harder They Come (1972)
This is England (2006)
Super Fly (1972)

Gladiator (that battle tune is timeless) Gone in 60 seconds Human Traffic Snatch & Lock Stock Guardians of the Galaxy I am Sam Magnolia
All make regular appearances.
Hotline Miami, Doom and Sim City are game OSTs that also get a lot of play time. Honourable mentions for Dark Reign, Spirit Farer and This War of Mine
- Gladiator is good but give a listen to Mars from the Planet Suite by Holst.
  
  Cheers, have added both to my list

Lately, I've been listening to The Martian. I'm kind of a sucker for synthy orchestral compositions and that soundtrack is just so hauntingly beautiful.

Memories of Matsuko and Sakuran.

I just watched Bill & Ted’s Excellent Adventure yesterday and though the soundtrack is not original, the soundtrack made the movie.

Soundtrack or score?
Soundtrack: Judgement Night. Paired hip hop artists with rock and metal bands. Biohazard and Onyx fucking tear it up. And Faith No More and Boo Yaa Tribe sounds incredible.
Score: Terminator 2. James Cameron is incredible about quality sound in his films. One of the best directors for sound in the biz.

The Mission 1986.

Buckaroo Banzai