The whistling from Bridge over river kwai

Somewhere Out There from An American Tail (1986).

Armageddon was a pretty big summer flick at the time but Aerosmith and John Denver were still more famous I think

Absence of Paradox by Lovett - in fact that whole album - is just simply magnificent on par with Vangelis.

The movie it's from, is also beautiful, but utterly confusing. I'm not sure it's very well known at all.

Gangsta's Paradise by Coolio (feat. L.V.)

It was originally written for a movie called Dangerous Minds. I'm not an expert on Hip Hop, but I'd say it has definitely made it's place among the best in the genre.

Also, it's heavily by Stevie Wonder's Pastime Paradise.

I'm surprised no one said Dolly Parton's 9-to-5.

Id say Lose Yourself by Eminem. Maybe because I was too young to watch the movie when it came out, but that song was everywhere, and is still popular today

Flashdance had two songs ("what a feeling" and "maniac") that everyone knows even if they haven't seen the movie.

Every song in k-pop demon hunters

Chariots of fire theme by Vangelis from a movie "Chariots of fire".

Kiss from a rose. Still going.

St. Elmos Fire. It's a one hit wonder, but the movie it was written for was typical 1980s "friends with issues" pablum. The kind that was better written and acted in a dozen other movies.

Axel F - Harold Faltmeyer ("Beverly Hills Cop" title)

The movies were super popular, but the title music became chart topping, and basically turned into the archetypical sound of the 80's

Have Yourself A Merry Little Christmas

"Come with me" - Puff Daddy (P Diddy) from Godzilla (1998)

The song peaked at No 2 on the UK charts.

The movie was a colossal failure and got 20% on rotten tomatoes.

Ironically both feature monsters.

"Raindrops keep falling on my head" - Hal David & Burt Bacharach (Butch Cassidy and the Sundance Kid)

"Young Guns" - Bon Jovi (Young Guns 2)

"Wind beneath my Wings" - Bette Midler (Beaches)

"Cry Little Sister" - Gerard McMahon (Lost Boys)

Just a few I can think of off the top of my head.

Flash by Queen

From the movie Flash Gordon

I Will Always Love You from The Bodyguard. I’ve never even seen it.

Also, Wicked Game was way bigger than Wild At Heart.

can't help falling in love, elvis. from blue hawaii (1961).

heard at weddings around the world for decades. in the present day it is the most-streamed elvis song. soundtrack and single both charted for weeks (the soundtrack for a year-and-a-half, 20 weeks at number one).

Kiss From a Rose by Seal. I couldn’t even tell you what the plot of Batman Forever was.

Smash Mouth - All Star. It’s so popular from Shrek that most people forget (or never knew) that it started in Mystery Men.

This post is 4h old and no-one’s got it rightest yet…

White Christmas.

Of course it is.

Few remember that it won the Oscar for 1942. Fewer still remember the film was called Holiday Inn

The graduate soundtrack by Simon and Garfunkel. Mrs. Robinson was a work in progress and adapted to fit the movie, and sound of silence, and Scarborough fair are classics of the period and folk rock pillars of the century.

Interestingly, this was one of if not really the first time popular, contemporary artists had their music featured in a film. Prior, scoring a film was the purview of someone with a music phd. Talk about the beginning of sea change for the industry.

Purple rain by Prince, from the movie with the same name

Bohemian Rhapsody, Wayne's World.

Wild Wild West was bigger than Wild Wild West

Honestly I do think Eye of the Tiger… if not, Chariots of Fire?

But maybe that’s just time