"Oh, thanks, Dryden. This is going to be fun." Whoops, that's from Lawrence of Arabia (also on my top 10) so here are 2 favorites from SF movies; hey, it's a double-billed matinee unless I get booted by Woody for flying popcorn boxes.
"I hope they don't hang you, precious, by that sweet neck. Yes, angel, I'm gonna send you over. The chances are you'll get off with life. That means if you're a good girl, you'll be out in 20 years. I'll be waiting for you. If they hang you, I'll always remember you." ~Sam Spade to Mary Astor in The Maltese Falcon...Shortcake and I always do this routine in the elevator at the White Swan Inn on Bush St. right up the street from where Miles Archer took a bullet.
"Oh, Jake, short lawyers - they worry me. Probably got enough juice to get a sodomy charge reduced to Following Too Close." ~from The Laughing Policeman, where Bruce Dern gives Lou Gossett Jr. the line that would later make him famous "you eyeballing me, boy?"
"All right, Mr. DeMille, I'm ready for some more quotes. Great Posting, John. Five bucks says this thread will be longer than Mission St.