In Gentlemen Prefer Blondes, one of the films in which she played an archetypal dumb blonde, Monroe had the sentence "I can be smart when it's important, but most men don't like it" added to her character's lines in the script.
Dalam Gentlemen Prefer Blondes, salah satu film dimana ia memerankan seorang pirang bodoh yang sangat khas, Monroe berkata "Aku bisa jadi pintar pada hal penting, namun kebanyakan pria tak menyukainya" sesambil menambahkan kalimat karakternya dalam naskah.