Some answers...

"Whewww! Those acts of God really stick it in and break it off, don't they?"
~ George Clooney (Seth) in "From Dusk Till Dawn"

"What are you? Some kind of half-assed astronaut?"
~ Robert Shaw (Quint) in "Jaws"

"He's alright. Let him be. He learnt the lesson of the land."
~ Richard Harris (Bull McCabe) in "The Field"

"But don't get me wrong; I loves the wimmens, I surely do."
~ Will Geer (Bear Claw Chris Lapp) in "Jeremiah Johnson"

"Boys, what have you done?"
~ Tom Skerritt (Reverend Maclean) in "A River Runs Through It"

"Why you speak treason!"   "Fluently."
~ Olivia de Havilland (Maid Marian) and Errol Flynn (Robin) in "The Adventures of Robin Hood"

"Look! Ugly one-horned mule!"
~ Kirin Shah (Blunder the troll) in "Legend"

"You are a musician. And under no circumstances am I allowed to go out with a musician. I'm sorry."
~ Maria Richwine (Maria, the future Mrs. Holly) in "The Buddy Holly Story"

"Crummy fam'ry! Crummy fam'ry!"
~ H.W. Gim (Ching the Chinese cook) in "McLintock!" ... how's that for obscure?

"He'd resent me... He'd accept me... He'd pity me... And he'd resent me."
~ Greer Garson (Paula) in "Random Harvest"

"My own brother, a goddamn shit-sucking vampire! Oh, you wait 'til Mom finds out, buddy!"
~ Corey Haim (Sam) in "The Lost Boys"

"You are one wise Caucasian, Vic."
~ Richard Roundtree (John Shaft) in "Shaft"