1. Starship troopers! (Cheesy as hell! Plus my wife hates it!)
2.Aliens. (Sorry alien fans....no one liners is no good for me. Bill fucking Paxton to boot.)
3.Avatar (Just to piss the law off!)
4.The matrix (It’s the matrix enough said.)
5.Blade (who doesn’t like daywalkers? Well maybe not cos.)
6.Star wars the empire strikes back. (No ewolks or jar jar. Just old chewing tobacco.)
7.Star trek the jja one. (This movie has bunch of cool shit in it. Bar fights, fencing and whole of lot of other stuff.)
8.The Predator! (I don’t have time to bleed on this one!)
9. T2. (This one is cool pinball! Plus I’m not going to self terminate on this one.)
10. Total recall. (Damn who doesn’t want a third hand after watching this one?)

Agreed I got no prob other then Avatar. Solid list
Edit: oh and Blade, fun at the time

Mad Max Fury Road
A Scanner Darkly
Snowpiercer
Her
Scanners
A Boy and his Dog
Gravity
Rogue One
Coherence
THX 1138
A Quiet Place
Under the Skin
V for Vendetta
The Iron Giant
Minority Report
Upstream Color
Repo Man
The Running Man
The Andromeda Strain

The Running Man is so fi'ng good on so many levels. I watch it every other year....doesn't get a lot of love and I get why, but I love it. It's just like Demolition Man. Another film that is just fun to watch.

"I'll Be Back"
"Only in a rerun"....

LOTS of great, cheesy one liners in that movie! Agree, just a fun one to watch!

1. 2001: A Space Odyssey "My god, it's full of stars"
2. Contact
3. TRON
4. T2
4. MOON
5. Gattaca
6. Edge of Tomorrow
7. Brazil
8. Blade Runner
9. Escape From New York
10. Open spot for when they make a truly good Asimov movie.

Super solid list.
I would want to add planet of the apes, bttf, E.T., and a couple of my favorite "newer" scifi films are Ready Player One and Looper.

See this is what I miss when I make a fast list!

Apple TV+ has a Foundation TV series coming out later this year. I have high hopes for it, but I'm sure I will ultimately be disappointed.

That's the Charlton Heston sci-fi trifecta!

1. The Thing
2. Bladerunner
3. Escape from New York
4. Men In Black
5. Mad Max
6. The Running Man
7. 5th Element
8. Total Recall
9. Robocop 1&2
10. The Blob (1988)

Yup. He had a hell of a fun in the 70's.

Another great film from the 80's. It didn't do too well, but it's more highly regarded today. Loved that the "hero" gets killed 20 minutes into the film.

A film very much like it that I haven't seen mentioned is Tremors.

They crammed too much into one movie. It should have at least been a trilogy.

You are not going to be pleased.

A3 had a good movie in it, but it just didn't happen. There are many stories on the net about the "script by committee" issue. Same thing happens whenever big $ is involved or sequels are in the works. I am a fan of Scott's earlier work, but Prometheus falls in on itself. It tries to be too clever.

The trouble with that is that they are gambling a lot of on the successes of the first film. In addition, it's very difficult (back then), to get actors to commit to 2 films (let alone 3)...the costs are substantial....especially when the first film hasn't been released yet.

"Or on your fucking knees, begging!"

Alien 3 would be much bigger now a days that everyone blows Fincher. Resurrection is just beyond awfull.
Speaking of awfull, Promethius is just so bad. You can watch a 20 minute YouTube video on how it actually makes sense...but if you have to go that far you've already lost.
Covenant might as well be a straight to video alien vs predator flick.

Spot on. What makes it tough to swallow is that it follows one of the best sci-fi horror movies of all time (based on a 1930ish novella), and a really good sequel that goes into another direction, but is also a stellar film.

Prometheus...while visually stunning has nothing to offer. It isn't interesting, it doesn't bring any sense of awe to it, it's just there. Like musicians, I think film directors lose their way when they get older. Scott isn't the first.

Forgot The Thing! 1981.
Impossible to list 10.

Not many of you listed MOON.
check this film out, Sam Rockwell's performance is stunning.

The only sci fy film that makes me weep more than MOON, is the end of Silent Running.
That poor droid, all alone with the forest, and his little kid pail and shovel beach toys.
And bunny rabbits!
I'm tearing up.
Sob!

Oh gee...there is only one list....Mine!
Forbidden Planet
The Day the Earth Stood Still
The Thing From Another World
War of the Worlds
The Time Machine
This Island Earth
When Worlds Collide
2001: A Space Odyssey
Incredible Shrinking Man
Them
Metropolis
....newer films
Blade Runner
Alien
Aliens
The Thing (Carpenter)
The Terminator
Terminator 2
The Matrix
Predator
Avatar
Star Wars (the 3 good ones)
Star Trek II: The Wrath of Ricardo

It's where they eat people... in space.....

Perhaps they are a fan of John candy and got it confused with "cool runnings"

Wakawakawaka!

Yes...and yes!

Great lists here, found some cool new recommendations to check out. I like the broad definition of sci-fi being used by everyone and I think I can defend all of these as being sci-fi enough:

1. Metropolis (1927)
2. 2001: A Space Odyssey
3. Robocop (1987)
4. Little Shop of Horrors (1986) - particularly with the original invasion ending
5. 20,000 Leagues Under the Sea
6. Solaris (1972)
7. Akira
8. Alphaville
9. Re-Animator
10. Tetsuo: The Iron Man

Honorable mentions to Stalker, The Terminator, The Andromeda Strain, La Jetée, 12 Monkeys, Brazil, Forbidden Planet, Blade Runner, Videodrome, Paprika, The Thing, Battle Royale, Dark City, Star Trek: TMP, and lots of kaiju movies.

Forgot about nuclear war movies. Love Threads and A Boy and His Dog. The Atomic Cafe is great too.

Too true

I need to see I Am Legend again but I wasn't into it much when I saw it at release. I do love the Omega Man and Last Man on Earth versions of the story.

28 Days Later was great, another one I haven't seen since release though. Been meaning to watch The Road and World War Z so thanks for the reminder.

So are we including zombie movies? I guess technically they are sci-fi/horror, but I tend to associate them more with the horror genre than sci-fi. I guess it depends on the movie. Obviously, a film like Resident Evil has a lot of sci-fi aspects to it. I generally don't think of George Romero's films as sci-fi, though.

I was waiting for you to pop in! Them and When World Collides are solid choices! Actually, anything George Pal was behind was great.

Cool vehicle but terrible special effects in that one

Might make a lot of the lists above for those that haven't seen it yet.

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I thought I had the directors cut dvd but just looked and only have it on laserdisc. Lots of really cool extras included in this release. Such a great film!

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Ok here we go.
No specific order.....
Equlibrium
K-pax
District 9
Contact
Terminator
Interstellar
Jurassic park
Edge of tomorrow
Aliens
Minority report

Ed: lots worth mentioning as runner ups. Blade runner, matrix, gattaca, ready player one, inception....

Stumbled across this one on Netflix last nite. Might not be top 10 worthy but it is worth a watch: Revolt

I've often wondered what would be the best Sci-Fi remake. Just think of these films with modern movie making technology.

Logan's Run
Westworld
Escape from New York

Best news ever was them finally canceling that Escape form New York reboot. Not every movie needs to be remade.

Surprised no one mentioned ‘Pandorum’.

Very good, underrated sci-fi.

Watch it a night, turn off all the lights and turn up it loud. Pretty intense!

1. Starwars (the original 3 movies)

2. Madmax (all 4 of them).

3. My Name is Eli.

4. The Edge of Tomorrow

5. Trons (both of them)

6. Star Trek 4 (love it, cheesey but great)

7. Pandorum

8. Looper

9. Dune

10. T2

Logan's Run could work depending on the Director.
Westworld already has been remade...twice.
No John Carpenter film should ever be remade, revisions, revisited...etc.