Some of mine:
"GIZMO KA-KA!" (still the greatest thing ever said by a movie character) - Gremlins
"We can eat hot dogs, or we can eat air. Choose." - Michael, Sleepers.
"You know macumba? Voodoo...Grandpappy was a priest in Trinidad...he used to tell us...when there's no more room in hell, the dead will walk the earth" - That badass black policeman, Dawn of The Dead
TIMON: He looks blue...
PUMBAA: I'd say brownish gold! - The Lion King (in fact, the ENTIRE first scene with Timon and Pumbaa fits here...absolutely perfect dialogue-wise)
Timon: "Hey, what's going on here? Who's the monkey!?"
Nala: Simba's gone back to challenge Scar.
Timon: "Who?"
Nala: "Scar."
Pumbaa: "Who's got a scar?"
Nala: "No no no no, it's his uncle."
Timon: "The monkey's his uncle?"
Nala: "NO! Simba's gone back to challenge his uncle to take his place as King."
Timon and Pumbaa: "Ohhh." - The Lion King
DONKEY: I don't feel any different...do I look any different?
PUSS: You still look like an ass to me!
SHREK: Maybe it doesn't work on donkeys...
"Why the *long* face?" (Inn-keeper to Donkey, after he's been turned into a stallion)
"Oh my dear, look at you...you're all...*titters*...grown up!" - Fairy Godmother
GINGY: Is he...?
FROG KING: *ribbit*
PINOCCHIO: Yup...he croaked!
- all from Shrek 2 (I could put the entire movie here)
"I know it was you, Fredo...you broke my heart!" - Michael Corleone, Godfather II
"Hey Etch...DRAW!" - Woody
"Whatcha lookin' at, ya hockey puck?" - Mr. Potato Head
- both from Toy Story I
HAMM: How about a hot dog with bacon and a side of fries?
REX: What about me?
HAMM: You could be the free toy that comes with the meal! - Toy Story 2
"NO STAIRWAY...DENIED!" - Wayne Campbell, Wayne's World 1
Bill: Ted, while I agree that, in time, our band will be most triumphant. The truth is, Wyld Stallyns will never be a super band until we have Eddie Van Halen on guitar.
Ted: Yes, Bill. But, I do not believe we will get Eddie Van Halen until we have a triumphant video.
Bill: Ted, it's pointless to have a triumphant video before we even have decent instruments.
Ted: Well, how can we have decent instruments when we don't really even know how to play?
Bill: That is why we NEED Eddie Van Halen! - Bill and Ted's EXCELLENT Adventure
AUNT MAY: Peter...do you want a bite?
PETER: No thanks...I had a bite!
"....weird..." - both from Spider-Man 1
MICHAEL JORDAN: Why do you take it from this guy?
MONSTAR #1 (shaking): Becaaaause heeeee's biiiigger!
MONSTAR #2 (pensively): ....he's...bigger....?
MONSTAR #3: Than we USED to be! - Space Jam
KID #1: He's a poo-poo head!
KID #2: He's a poo-poo face!
KID #3: He's a ka-ka poo-poo!
*All giggle* - Kindergarten Cop
MERRY: Hey...! We're coming too! You'd have to send us home tied up in a sack to stop us!
PIPPIN: Besides...you need people of intelligence in this sort of mission...quest...thing!
MERRY: Well, that rules you out, Pip!
*Pippin nods enthusiastically, then double-takes* - Lord of The Rings: FoTR
I'll add more as I recall them. Add your own.
"GIZMO KA-KA!" (still the greatest thing ever said by a movie character) - Gremlins
"We can eat hot dogs, or we can eat air. Choose." - Michael, Sleepers.
"You know macumba? Voodoo...Grandpappy was a priest in Trinidad...he used to tell us...when there's no more room in hell, the dead will walk the earth" - That badass black policeman, Dawn of The Dead
TIMON: He looks blue...
PUMBAA: I'd say brownish gold! - The Lion King (in fact, the ENTIRE first scene with Timon and Pumbaa fits here...absolutely perfect dialogue-wise)
Timon: "Hey, what's going on here? Who's the monkey!?"
Nala: Simba's gone back to challenge Scar.
Timon: "Who?"
Nala: "Scar."
Pumbaa: "Who's got a scar?"
Nala: "No no no no, it's his uncle."
Timon: "The monkey's his uncle?"
Nala: "NO! Simba's gone back to challenge his uncle to take his place as King."
Timon and Pumbaa: "Ohhh." - The Lion King
DONKEY: I don't feel any different...do I look any different?
PUSS: You still look like an ass to me!
SHREK: Maybe it doesn't work on donkeys...
"Why the *long* face?" (Inn-keeper to Donkey, after he's been turned into a stallion)
"Oh my dear, look at you...you're all...*titters*...grown up!" - Fairy Godmother
GINGY: Is he...?
FROG KING: *ribbit*
PINOCCHIO: Yup...he croaked!
- all from Shrek 2 (I could put the entire movie here)
"I know it was you, Fredo...you broke my heart!" - Michael Corleone, Godfather II
"Hey Etch...DRAW!" - Woody
"Whatcha lookin' at, ya hockey puck?" - Mr. Potato Head
- both from Toy Story I
HAMM: How about a hot dog with bacon and a side of fries?
REX: What about me?
HAMM: You could be the free toy that comes with the meal! - Toy Story 2
"NO STAIRWAY...DENIED!" - Wayne Campbell, Wayne's World 1
Bill: Ted, while I agree that, in time, our band will be most triumphant. The truth is, Wyld Stallyns will never be a super band until we have Eddie Van Halen on guitar.
Ted: Yes, Bill. But, I do not believe we will get Eddie Van Halen until we have a triumphant video.
Bill: Ted, it's pointless to have a triumphant video before we even have decent instruments.
Ted: Well, how can we have decent instruments when we don't really even know how to play?
Bill: That is why we NEED Eddie Van Halen! - Bill and Ted's EXCELLENT Adventure
AUNT MAY: Peter...do you want a bite?
PETER: No thanks...I had a bite!
"....weird..." - both from Spider-Man 1
MICHAEL JORDAN: Why do you take it from this guy?
MONSTAR #1 (shaking): Becaaaause heeeee's biiiigger!
MONSTAR #2 (pensively): ....he's...bigger....?
MONSTAR #3: Than we USED to be! - Space Jam
KID #1: He's a poo-poo head!
KID #2: He's a poo-poo face!
KID #3: He's a ka-ka poo-poo!
*All giggle* - Kindergarten Cop
MERRY: Hey...! We're coming too! You'd have to send us home tied up in a sack to stop us!
PIPPIN: Besides...you need people of intelligence in this sort of mission...quest...thing!
MERRY: Well, that rules you out, Pip!
*Pippin nods enthusiastically, then double-takes* - Lord of The Rings: FoTR
I'll add more as I recall them. Add your own.