Post a Movie Quote That Gives Away the Film w/o Saying the Title

Finding Nemo

“Hey, I got a social disease!”

West Side Story

“Because I am mad, I am rejoicing in my heart without a shred of pity, without a shred of regret, watching you go with glory in my heart!”

Gaslight.

“No! There is no other hand!”

Fiddler on the Roof

“It’s all right, that’s in every contract. That’s what they call a ‘sanity clause’.”

A Night At The Opera
“So, that was Mrs. Lundegaard on the floor in there. And I guess that was your accomplice in the wood chipper.”

Fargo

“Multi-pass!”

The Fifth Element

“What family doesn’t have its ups and downs?”

A Lion in Winter

“I’m just like any modern woman trying to have it all. Loving husband, a family. It’s just… I wish I had more time to seek out the dark forces and join their hellish crusade.”

The Addams Family
“What we have here is a failure to communicate.”

Cool Hand Luke

The cheaper the crook, the gaudier the patter.

ETA: the previous quote was actually from Addams Family Values.

The Maltese Falcon

“There are going to be fewer but better Russians.”

Ninotchka

“I could have done more.”

Schindler’s List

“You should’a let me out of the car when I asked you to, Bob. You see what happens when ya got bad manners?”

Freeway

“Fortune and glory, kid; fortune and glory.”

Freeway

“You can’t handle the truth.”

Indiana Jones and the Temple of Doom
ETA: “You can’t handle the truth” is from A Few Good Men.
In play:
“Come, it is time to give the Machine-Man your face.”

Metropolis

“You talkin’ to me?”

Taxi Driver.

“Ease his Pain”

“You can’t handle the truth”

"Life is a box of chocolate "
“I could had been a contender”

A Few Good Men, Forrest Gump, On the Waterfront

Field of Dreams

“Fate, it seems, is not without a sense of irony.”