Like Vgavoy said, it's hard to pick just one quote from the Holy Grail, but this is a classic.

King Arthur: Consult the Book of Armaments!
Brother Maynard: Armaments, chapter two, verses nine through twenty-one.
Cleric: [reading] And Saint Attila raised the hand grenade up on high, saying, "O Lord, bless this thy hand grenade, that with it thou mayst blow thine enemies to tiny bits, in thy mercy." And the Lord did grin. And the people did feast upon the lambs and sloths, and carp and anchovies, and orangutans and breakfast cereals, and fruit-bats and large chu--
Brother Maynard: Skip a bit, Brother...
Cleric: And the Lord spake, saying, "First shalt thou take out the Holy Pin. Then shalt thou count to three, no more, no less. Three shall be the number thou shalt count, and the number of the counting shall be three. Four shalt thou not count, neither count thou two, excepting that thou then proceed to three. Five is right out. Once the number three, being the third number, be reached, then lobbest thou thy Holy Hand Grenade of Antioch towards thy foe, who, being naughty in my sight, shall snuff it."
Brother Maynard: Amen.
All: Amen.
King Arthur: Right. One... two... five!
Galahad: Three, sir.
King Arthur: Three!

Excellent film...have watched it over and over

Could i have resisted Jareth.....NOPE!!

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Dedicated to Heatluvintxn:

"Fuck, fuck, fuck the police."

--Jay and Silent Bob Strike Back

I like this thread. A lot. Because I love movies.

"Put your trust in the Lord. Your ass belongs to me. Welcome to Shawshank."

--Shawshank Redemption

"We don't have none of this stuff in the boy's room! Wait a minute! We don't got none of this... we don't got doors on the stalls in the boy's room, we don't have, what is this? What's this? We don't have a candy machine in the boy's room!"--Pretty in Pink

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I always wanted to be somebody, but now I realize I should have been more specific. --Lily Tomlin

"Up to your ass in gasoline. Set yo ass on fire" - Demolition Man

"Have you any idea why a raven is like a writing desk" - Alice in Wonderland

"Look, you wanna compare brain pans? I won the Westinghouse prize when I was 12, big deal. Published at 19, so what. I got a double doctorate from M.I.T. at 22, chemistry and geology. I taught at Princeton for two and a half years. Why do I do this? Because the money's good, the scenery changes, and they let me use explosives, OK?" - Armageddon

"If she kisses you, I'll turn you into a prince. You will? Prince of the Land of Stench!" -Labyrinth

There are so many more that I have in my head (my movie collection is in the 300's)....

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"BOY: On a hot summer night, would you offer your throat to the wolf with the red roses? GIRL: Will he offer me his mouth? BOY: Yes. GIRL: Will he offer me his teeth? BOY: Yes. GIRL: Will he offer me his jaws? BOY: Yes. GIRL: Will he offer me his hunger? BOY: Yes. GIRL: Again, will he offer me his hunger? BOY: Yes! GIRL: Yes. BOY: On a hot summer night, would you offer your throat to the wolf with the red roses? GIRL: Yes. BOY: I bet you say that to all the boys!" -Meatloaf

"Just like a gum machine. You drop some in and she'll put some out."--Paper Moon

"For what we are about to see next, we must enter quietly into the realm of genius." --Young Frankenstein

"It is an advantage to have a successful father. Nobody ever wanted my old man for as much as five hundred." --Guys and Dolls

"She looks like a cocktail waitress on an oil rig." --Best in Show

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I always wanted to be somebody, but now I realize I should have been more specific. --Lily Tomlin

"And how do you know I won't see what you're seeing when you see me in court?!" -Being John Malkovitch

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On the kinkometer, my kink measures as a sine wave.