Sorry - maybe I’m tired, but I don’t understand what you mean by “I didn’t think so at all”?
Did you read the novel? I know that is related to the OP, but read the novel and the film suck by comparison. YMMV
Sgt Schwartz
The line, “What she’s got you can’t spell, and what you’ve got you used to have.”
From the otherwise forgettable (IMO) Barefoot Contessa.
gonzomax
I guess you consider “Journey To The Center of the Earth” a bad film? I don’t. Sure it is somewhat “corny” but it still is a good story.
Oh and you have that quote wrong. (I know it because I like that line too).
“I never sleep. I hate those little slices of death.”
Snakes on a Plane
Enough is enough! I have had it with these motherfucking snakes on this motherfucking plane!
So what did I win?
I grant that it’s not a great film, but the OP asked for quotes from bad films, and BB is far from a bad film!
Okay, kiddies, how about Predator? Bad or brilliant?
My kids hate it when I watch it on Telemundo or whatever Spanish station plays it. “Dad, we don’t speak Spanish. YOU don’t speak Spanish.”
"You don’t need to. Wait for it . . . "
TV, “Si sangra, podemos matarle.”
Me, “‘If it bleeds, we can kill it.’ Great line!”
Buckaroo Banzai is a good movie; close to greatness, in its slice of genre.
The Barefoot Contessa comes very close to being a great movie: it’s on a short list of my favorites, and includes an even better exchange than the one quoted above. When Bogart and O’Brien are trying to sell Ava Gardner on the idea of coming to America to be a star, they offer to bring her mother with her.* “Every girl needs her mother,”* they say. “I don’t like my mother,” she says, establishing her character and totally winning the ‘negotiation.’
*Snakes on a Plane *is a BAAAAD movie, and the best line in it (quoted above) was written by a blogger, fchryssakes.
Not just a blogger, but by every last person who put star and vehicle together. Except the people who made it, who had to read the blogger.
“We need to get bigger guns. BIG FUCKING GUNS!” - Split Second with Rutger Hauer.
The following line, spoken with utmost serious conviction, from one teenage girl to her hero in the atrocious sci-fi movie Evolution:
“You ARE that potato.”
I have to agree with the others above – The Thing was a great flick. But i have to add that, if this is the line after the Head goes walkin’ off on its own, the unexpurgated line (changed or cut when run on TV) is:
Beat me to this line: all of my buddies and I laughed out loud for forever in the theatre when we heard that line. I almost shouted out that line watching Jeremy Irons in Eragon the other day…okay, I did say that line out loud but no one heard me because the theatre was nearly empty 
So you’ve read the book and seen the film - just how much of a masochist are you Ludovic? Will you be buying any promotional tie ins and stocks in Paolini.com as well?
No, I just thought it would have some great scenery. I was wrong, but it wasn’t a very bad 1980’s style B-movie, if you take it as that.
The thing that did peeve me, though, is that what I predicted is exactly what would happen w/r/t the scenery - that it would look exactly like what LOTR should have looked like - very European and subtle, which is exactly how I imagined the scenery in Tolkein’s books to look like (except for the Misty Mountains and the Shire, which looked like I had imagined them, oh, and Mordor, but I didn’t really like Mordor in the book, either.)
I was hoping that Eragon would be more, erm, “inspired” by the cinematography of LOTR because the epic, sweeping, huge igneous mountains and landscape seemed apprpriate to it, rather than to LOTR.
So basically, they should have swapped filming locations.
But I still contend that Eragon was not the most horrible movie ever made, which is more than I can say for the book. I like the sparseness and one-off weirdness of some of the more quirky 1980’s B-movie fantasy films and this reminds me of them.
Richard Bachman is Stephen King, btw.
Deathstalker II is hands down my alltime favorite bad movie (if that makes any sense). My buddies and I saw it in high school when my friend got his wisdom teeth pulled and was out for a week. All he could do was watch movies and we were into D&D and fantasy action and whatnot, so he rented it, and we were cracking up for the entire time. Perfect movie for hischool boys - dumb comedy and loads of gratuitous nudity.
My contribution to the thread: I’m Gonna Get You Sucka, not a great comedy, but it has a part where someone gets out of their car, and you hear the nice voice in the background:
“Your door is ajar, please close the door.”
“Your door is ajar, please close the door.”
then someone screams
“I saaaaaaaid, close the door! Shithead!”
The voices are perfect. Makes me smile just thinking about it.
After watching “The One” I was going to start this exact thread, but I never did. I was going to mention, “There has never been anything like what I have become.”, spoken with conviction by Yulaw.
What a great and terrible movie.
“Numbers! They’re just numbers!” from MegaForce Horrible, awful 80’s movie, but fun to watch! 
“Send more cops”
from Return of the Living Dead, which I saw in a triple feature in a sleazy 24-hour theater in downtown LA back in the '80’s. Scariest part of the whole thing was when a rat ran over my (sandeled) feet during “House by the Cemetary”. This was on a date, mind you.