Most ridiculous one has to be "I have my 50 shades of grey" or something like that dropped in the same movie.
I only know this because of the fun honest reviews made of it.
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That dialogue is from the book. The book gets its title from the dialogue. The film has the same title and dialogue because it's based on the book.
There is no point where script writers are sat down trying to figure out how to work the title into the dialogue.