I’ve never been to this forum because I don’t write screen or stageplays, but the thread title intrigued me.
There are several good ones in Gone With The Wind: “Frankly my dear, I don’t give a damn.”
One of my all-time favorites: Forrest Gump – “My mama always said, ‘Life is like a box of chocolates; You never know what you’re gonna get.”
My very favorite, (though I don’t believe it’s famous) – Jimmy Stewart as Edward P. Dowd in my favorite movie, Harvey: He walks into a business, usually a bar, and someone asks “What can I do for you?” His reply? “Well, what’d ya have in mind?” I love that one!