Mission Impossible, and like 90% of the James Bond films. What can I say? I have a type.

My pick is Stanley Kubrick's 1968 masterpiece, 2001: A Space Odyssey.

Also Sprach Zarathustra by Richard Strauss will forever be one of cinema's greatest opening themes. And combined with the opening credits of the movie with the sun rising slowly over the Earth was absolutely groundbreaking and legendary. It is truly one of the greatest opening credits sequences of all time.

Valerian and the City of a Thousand Planets

One of the best movies intros I've ever seen. Too bad the rest of the movie sucked.

I could list a bunch of movies but it's easier to say anything scored by John Williams. Superman, Star Wars, Raiders of the Lost Ark, Jaws. I never caught Close Encounters of the Third Kind but I'll go out on a limb and say it's good just on faith.

He scored some other things, but that's what I remember off the top of my head.

Drive

Song is Kavinsky - Nightcall

Plup fiction's intro was captivating.

Terminator 2: Judgment day

Perhaps a bit on the campy side, the opening theme song of the original Highlander was always one of my favorites:
Princes of the Universe by Queen.

I just saw Deadpool Wolverine last week, and must say Bye Bye Bye aged pretty well 😎

My all time favourite is Lord of war. Perfect song, nice way to show the bullet production and then in the end when it hits its target... Could not imagine a better opening to this movie. Especially once you get to know that it is based on some real russian arms dealer.

Hunt for the Red October

The overture for Star Trek the motion picture. That’s right. It had an overture.

• The Italian Job (1969)
• The Magnificent Seven (1960)
• Ennio Morricone’s music for the Man With No Name series

Not a movie but the Raised By Wolves opening theme song is pretty epic.

Armageddon

Star Wars episode 4 - A New Hope

There can be only one: Highlander

John Powell's opening for How to Train your Dragon deserves a shoutout for including every major Leitmotiv of the movie.

I'll let someone smarter go into 18 minutes of more detail here: https://m.youtube.com/watch?v=4UUJQH7GLms

I'll pull out an obscure old one just for novelty's sake: The Black Hole. The opening theme captures the entire movie perfectly.

https://www.youtube.com/watch?v=JI6VPFQw6BU

All of these are good answers, but the movie with the best opening theme is obviously Alan Partridge - Alpha Papa.

Stargate

The Stand (1994, does this count since it's a mini series?) Badass the whole way

Contact

A series, but The Expanse is hauntingly beautiful.

One I didn't see mentioned yet: reservoir dogs.

Scott Pilgrim vs. The World!

robin hood prince of thieves

Titus