"Frankly my dear I just don't give a damn" I have use that many times before, I think it was from a james bond movie.

servbot128 : That quote is from Gone With The Wind, man.

My favorite line from a Star Wars parody. "Luke! I am your second cousin's roommate! Together we shall rule the galaxy as two people who are in no way related!" Best line ever.

I really like this one from the newest Rocky movie: 

Rocky Balboa: Let me tell you something you already know. The world ain’t all sunshine and rainbows. It’s a very mean and nasty place, and I don’t care how tough you are, it will beat you to your knees and keep you there permanently if you let it. You, me, or nobody is gonna hit as hard as life. But it ain’t about how hard you hit. It’s about how hard you can get hit and keepmoving forward; how much you can take and keep moving forward. That’s how winning is done! Now, if you know what you’re worth, then go out and get what you’re worth. But you gotta be willing to take the hits, and not pointing fingers saying you ain’t where you wanna be because of him, or her, or anybody. Cowards do that and that ain’t you. You’re better than that!

One of my favorite movie quotes ever

I love action movie one-liners, they're the best, so here's some that I really like.

"Yippie-kai-yay, motherf***er." - Die Hard

"Oh man, I can't f***ing believe this. Another basement, another elevator. How can the same sh*t happen to the same guy twice?
" - Die Hard 2

"I didn't say Park Drive..." *turns the car into a park area* "... I said 'through the park'."

"You see, in this world there's two kinds of people, my friend: Those with loaded guns and those who dig. You dig.
" - The Good, The Bad and The Ugly

"When you have to shoot, shoot, don't talk." - The Good, The Bad and The Ugly

"Send a maniac to catch a maniac." - Demolition Man

Simon Phoenix: "Look I don't need a history lesson! C'mon, HAL, where are the gosh darn guns?"
Moral Statute Machine: "You are fined one credit for a violation of the Verbal Morality Statute." 
Simon Phoenix: "What? f*** you!"
Moral Statute Machine: "Your repeated violation of the Verbal Morality Statute has caused me to notify the San Angeles Police Department. Please remain where you are for your reprimand."
Simon Phoenix: "Yeah, right."
*sound of police sirens*
Simon Phoenix: "f***ers are fast too."
Moral Statute Machine: "You are fined one credit for a violation of the Verbal Morality Statute." - Demolition Man

I think that's enough for now. Maybe I'll think of more later.

"I once dabbled in pacifism. Not in Nam of course"- Walter, Big Lebowski.
"All of these kids yours? Different mothers I presume" Dude, Big Lebowski
Really anything Coen Bros. I can go all day

You actin' like a little b**ch right now. - Ol Dogg from Menace 2 Society

To Infinity and Beyond - Buzz Lightyear

YOU GOT KNOCKED THE F**K OUT! - Smokey from Friday

Lord of the Rings: The Return of the King:

Theoden: Eomer. Take your Èored down the left flank. Gamling, follow the King's banner down the center. Grimbold, take your company right, after you pass the wall. Forth, and fear no darkness! Arise! Arise, Riders of Theoden! Spears shall be shaken, shields shall be splintered! A sword day... a red day... ere the sun rises!
Eowyn: [to Merry] Whatever happens, stay with me. I'll look after you.
Theoden: Ride now!... Ride now!... Ride! Ride to ruin and the world's ending!
Theoden: Death!
Rohirrim:  Death!
Theoden: Death!
Rohirrim: Death!
Theoden: DEATH!
Eowyn, Merry: Death!
Theoden: Forth, Eorlingas!


Does anything else need to be said?

Quoting just a line doesn't do the quote justice since it isn't in context which is why they where great quotes to begin with.
If you've watched any of the Harry Potter films you will know they are a plethora of great quotes within and through each and every movie,
one of my favorite happens to be by Griphook in response to Harry during a conversation when the topic of Gryffindor's sword came
into discussion :

( referring to Harry burying Dobby )
Griphook : You buried the elf.
Harry Potter : Yes.
Griphook : It brought me here. You are very unusual wizard. How did you come by this sword?
Harry Potter : It's complicated. Why did Bellatrix Lestrange think it should be in her vault at Gringotts?
Griphook : It's complicated.

But this isn't the only memorable quote from the final movie of the series, one I'm sure you will have had a laugh at would have been
Minerva McGonagall and Molly Weasly.

[as she a casts a spell that summons the stone statues of knights in armor]
Minerva McGonagall : Piertotum Locomotor!
[the knights start marching down the steps of Hogwarts]
Minerva McGonagall : Hogwarts is threatened. Man the boundaries! Protect us! Do your duty to our school!
[to Molly Weasley as they watch the knights march across the main stone bridge]
Minerva McGonagall : I've always wanted to use that spell.

But moving on from Harry Potter, I remember a quote from the hobbit thanks to pray75's LOTR quote post.
The Hobbit : An Unexpected Journey : During a conversation between Bilbo and Gandalf I noticed a line I quite liked ( Bold. )

Bilbo: I'll be alright. Just let me sit quietly for a moment.

Gandalf: You've been sitting quietly for far too long. Tell me, when did doilies and your mother's dishes become so important to you? I remember a young hobbit who was always running off in search of Elves, in the woods. He'd stay out late, come home, after dark, trailing mud and twigs and fireflies. A young hobbit who would've liked nothing better than to find out what was beyond the borders of the Shire. The world is not in your books and maps. It's out there.

Bilbo: I can't just go running off into the blue! I am a Baggins, of Bag End!

Gandalf: You are also a Took. Did you know that your great, great, great, great uncle Bullroarer Took, was so large he could ride a real horse?

Gandalf: Yes, well he could! In the battle of Green fields, he charged the goblin ranks he swung his club so hard, it knocked the goblin king's head clean off, and it sailed a hundred yards through the air, and went down a rabbit hole. And thus the battle as won, and the game of golf invented at the same time.

Bilbo: I do believe you made that up.

Gandalf: Well, all good stories deserve embellishment. You'll have a tale or two to tell of your own when you come back.

Bilbo: Can you promise that I will come back?

Gandalf: No. And if you do, you'll not be the same.

Bilbo: That's what I thought.

Bilbo: Sorry, Gandalf, I can't sign this. You've got the wrong hobbit.

jamesonaj : Vicki Vale: "Are we gonna try to love each other?".  Bruce Wayne: " I'd like to. But right now he's out there, and I gotta go work." (Batman-1989)    /    Judge Dredd: "It's a lie! The evidence has been falsified! That's impossible! I never broke the law! I am the law! (Judge Dredd- 1995)    /        Princess Leia:"Why, you stuck up, half-witted, scruffy-looking Nerf herder".  Han Solo: "Who's scruffy-looking?". ( Star Wars-1977) /    Hans Gruber: "Do you really think you have a chance against us, Mr. Cowboy?".  John McClane: "Yippee-ki-yay, motherf@#$%r." (Die Hard-1988)

I'm a big Die Hard fan.  So my favorite movie line of all-time would have to be yippie-ki-yay mother...

[examines room and looks at cop] "I'll be back."
-Arnold Schwarzenegger,The Terminator. 

A quote from the warriors.
Said by Ajax "Im going to shove that bat up your @$$ and turn you into a popsicle"
I got to love that scene.

In Sweeney Todd, when he's first holding his straight razors.   "At last! My arm is complet again!" :3

All of the Transformers' Movie Quotes by Optimus Prime.. epicness.

"Before time began, there was the Cube. We know not where it comes from, only that it holds the power to create worlds and fill them with life. That was how our race was born. For a time, we lived in harmony, but like all great power, some wanted it for good, others for evil. And so began the war - a war that ravaged our planet until it was consumed by death, and the Cube was lost to the far reaches of space. We scattered across the galaxy, hoping to find it and rebuild our home, searching every star, every world. And just when all hope seemed lost, message of a new discovery drew us to an unknown planet called... Earth. But we were already too late."

"With the All Spark gone, we cannot return life to our planet. And fate has yielded its reward: a new world to call... home. We live among its people now, hiding in plain sight... but watching over them in secret... waiting... protecting. I have witnessed their capacity for courage, and though we are worlds apart, like us, there's more to them than meets the eye. I am Optimus Prime, and I send this message to any surviving Autobots taking refuge among the stars: We are here... we are waiting."

"Earth. Birthplace of the human race, a species much like our own. Capable of great compassion... and great violence. For in our quest to protect the humans, a deeper revelation dawns; our worlds have met before. For the last two years, an advanced team of new Autobots has taken refuge here under my command. Together, we form an alliance with the humans, a secret but brave squad of soldiers. A classified strike team called NEST. We hunt for what remains of our Decepticon foes, hiding in different countries around the globe."

"Our races united by a history long forgotten, and a future we shall face together. I, am Optimus Prime, and I send this message so that our pasts will always be remembered. For in those memories, we live on."

"In any war, there are calms between storms. There will be days when we lose faith. Days when our allies turn against us...but the day will never come that we forsake this planet and its people. "

These quotes are all sensational.

Following is one of the most memorable scenes from Spaceballs. I have edited/bleeped out certain words for the younger audiences.

Spaceball 1:

Sanders: Princess Vespa's spaceship within range sir.
Helmet: Good. Fire a warning shot across her nose.

Inside the spaceship:

Vespa: What's going on?
Dot Matrix: It's either the 4th of July, or someone is trying to kill us!
Vespa: Hey, I don't have to put up with this. I'm RICH! *grabs phone*
Dot Matrix: What are you doing?
Vespa: I'm calling my Father. 1-800 Druidia

Back on Spaceball 1:

Helmet: Careful you *****, I said across her nose, not up it!
Gunner: Sorry sir, doing my best.
Helmet: Who made that man a gunner?
Major: I did sir! He's my cousin.
Helmet: Who is he?
Sanders: He's an ******* sir.
Helmet: I know that. What's his name?
Sanders: That is his name sir. *******, Major *******
Helmet: and his cousin?
Sanders: He's an ******* too sir. Gunners Mate First Class Phillip *******
Helmet: How many ******** do we got on this ship anyhow?
Majority of crew: YO!
Helmet: I knew it. I'm surrounded by ********. Keep firing ********!