"I want my two dollars." - Better Off Dead.
"May the Force be with you." - Star Wars. When we played Yahtzee as a kid, it was "May the 4s be with you."
"I feel the need, the need for speed." - Top Gun.
"Goose, you big stud, take me to bed or lose me forever." - Top Gun.
"I'll get you my pretty. And your little dog, too." - The Wizard of Oz.
"Lions and tigers and bears, oh my!" - The Wizard of Oz.
"I'm melting. I'm melting." - The Wizard of Oz.
"We're walking. We're walking. Stop." - Dave.
"Luke, I 'm your father." - Empire Strikes Back.
Too many to mention from Steel Magnolias. Have to watch it again so I can get them down verbatim. But Julia Roberts, Shirley MacLaine, Olympia Dukakis and Dolly Parton all have notable quotables in this film.