From Love in the Afternoon (1957), starring Audrey Hepburn, Gary Cooper and Maurice Chevalier:
Frank Flannagan: What does he export and what does he import?
Ariane Chavasse: Oh, he uh - he exports perfume and imports bananas. There's a fortune in it. Do you realize that for one bottle of perfume you get twelve bananas?
Frank Flannagan: Twelve bananas for one bottle of - doesn't sound like such a hot deal to me.
Ariane Chavasse: It's a tiny bottle of perfume and very large bananas.