Cindy at Notes in the Key of Life has thirteen of her favorite movie quotes posted today. I like all of hers, and here are some of mine. These are mostly the lines we use in our family as a sort of shorthand:

Cary Grant in Arsenic and Old Lace: “Insanity runs in my family… It practically gallops.”

White Christmas:
Bob Wallace (Bing Crosby): Let’s just say we’re doing it for an old pal in the army.
Phil Davis (Danny Kaye): Well, it’s not good, but it’s a reason.

Gone With the Wind:
Prissy: “I don’t know nothin’ ’bout birthin’ babies.”
Scarlett: “I’ll think about that tomorrow. . . After all, tomorrow is another day.” (Pronounced with one’s best Southern accent, of course.)

Benjy Benjamin (Mickey Rooney) in It’s a Mad, Mad, Mad, Mad World: “Now look! We’ve figured it seventeen different ways, and each time we figured it, it was no good, because no matter how we figured it, somebody don’t like the way we figured it! So now, there’s only one way to figure it. And that is, every man, including the old bag, for himself!”

Jimmy Stewart in The Philadelphia Story: “C.K. Dexter Haaaaven!”

The Princess Bride is the most quotable movie of all time. Cindy already quoted Inigo Montoya on revenge. Some other notable PB quotes:

Grandson: “Is this a kissing book?”
Westley: “As you wish.”
Vizzini: “Inconceivable!” “Never get involved in a land war in Asia.” “Never go against a Sicilian when death is on the line!”
Inigo Montoya: “You keep using that word. I do not think it means what you think it means.”
“Let me ‘splain. No, there is too much. Let me sum up.”
Bishop: “Mawage. Mawage is wot bwings us togeder tooday. Mawage, that bwessed awangment, that dweam wifin a dweam… And wuv, tru wuv, will fowow you foweva.”
Miracle Max: “It just so happens that your friend here is only MOSTLY dead. There’s a big difference between mostly dead and all dead. Mostly dead is slightly alive.”

And what are your favorite movie quotes?