not yet mentioned, i think:
Ghost Dog
Soylent Green
The Quiet Earth
eXistenZ
Brazil
The Cube, yes. There is also a Cube 2 but it was basically the same thing.
And the movie was called Jacob's Ladder, not inferno.
I liked the first Cube. It was an extremely creative idea and was a cheap to make movie. I think they are up to Cube 4 now, which is a bit excessive as far as I'm concerned. Sam Raimi pretty much made the quintessential cult movie with his Evil Dead series. As much attention as it still gets, it still stands up to the test of time with the best of them.
I've seen way too many movies. Seriously.
Blazing Saddles....
because it's so god damn racist.
Dazed and Confused
Synecdoche, New York
I enjoyed "Hedwig and the Angry Inch," and apparently there is a cult of fans who go to city theaters and wear the foam blonde hair during the late-night showings. Headwigs or something of the like.
Eraserhead
Mystery Science Theater. The end.
No one's specifically said Lebowski yet. I'm shocked. SHOCKED!
Let me step into to the wayback fantasy/sci-fi machine here for a moment...
The Dark Crystal
Princess Bride
The Neverending Story
Willow
Tron
And a few of my guilty favorites..
Antitrust
Enemy Mine
Blade Runner (yea i know already mentioned)
Network
A few of these may be repeats, but here's a few off the top of my head. I have a deep-seated passion for B-grade horror and pure mindfuck films, so here goes:
Barfly
Return of the Living Dead
Dawn of the Dead
Withnail and I
Zombi
Cannibal Holocaust (this one is seriously NSFL, not for the weak)
The Way of the Gun
Tank Girl
Doom Generation
Happiness
Re-Animator
Death Race 2000 (the original, not the fucking remake)
El Mariachi
The Game
Meet the Feebles
Suburbia (the 1984 punk classic, not the mid-90's grunge wankfest)
Also, pretty much anything by David Lynch or Terry Gilliam.
In Bruges fucking sucked.
I'm sorry but there is literally nothing good about this movie. So many people told me it was great and after I watched it I felt completely wooshed. I was honestly pissed about wasting my time after watching it.
I mean half the cast from Harry Potter 4 is in it, except they do an even worse acting job here. The story sucked. Colin Farrell sucked. His partner sucked. The bad guy sucked. Collin Farrell's girlfriend sucked. Even the midget sucked, and its really fucking hard to make a midget suck. I wasn't the least bit surprised that the ending sucked too.
As for "cult" films I like:
Hackers
Kingpin
Tank Girl
Mean Guns
Equilibrium
Cube
Boondock Saints
Snatch
There's others I like but this is all I can think of right now.
Tank Girl has been mentioned twice already. Am I being wooshed here?
Slacker
Rosencrantz and Guildenstern Are Dead
Buffy the Vampire Slayer
and amazed no one has listed any of Kevin Smith's early films:
Clerks
Mall Rats
Chasing Amy
wargames
Has anyone mentioned Oldboy? Great korean movie check it out if you haven't.
Also Japanese and Korean horror flicks like The Ring and all the other shit US adaption horror flicks that have been coming out.
But to BrillCS a million fucking times Battle Royale if you haven't seen it.
The Filipino Weng Weng flicks are great too, midget 00 movies spoofing Bond. First one was "For Your Height Only" and continues with quite a few more.