In the movie, Westley (the knight on the white horse) is rescuing Buttercup (the princess) from Prince Humperdinck.
When Westley asks Buttercup what she will do once he rescues her, she replies:
"You silly goose! Of course I'll marry you! We'll have a beautiful wedding, a big castle, lots of children... and you'll be a wonderful husband! ...That is, if you're still alive after this."
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