Sarcastic movie characters

My main character in Death at 6:17. It's amazing the hot chick dated a character identical to her character's brother.

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"Some day this war has to end."
"Wash your mouth out with soap!"

The one and only Sergeant Gunny Hartman from Full Metal Jacket.

Adam Scott ...
Derek
From Step Brothers,

Idiot actor

The character in my avatar.

Has anyone remember Jack Sparrow from The Pirates of Caribbean? I think its the most sarcastic character ever in Hollywood flicks.

How could we neglect to mention Jack Nicholson? - in almost any role but 2 favorites of mine are:

from:As Good as it Gets- The noodle salad philosophy of life speech

from: Five Easy Pieces:
I want you to hold it between your knees LMAO

Oops, I see Jack in 'good ' was mentioned in the very first post. But I still think the chicken salad san was the best classic sarcastic line and scene and character in filmdom.

Can't believe it took this long for someone to mention Eve Arden...and how od you mention Arden without mentioning Thelma Ritter?