2. George Orwell’s publisher didn’t feel the title to Orwell’s novel The Last Man in Europe was terribly commercial and recommended using the other title he had been kicking around—1984.
5. Ernest Hemingway’s original title for The Sun Also Rises was used for foreign-language editions—Fiesta. He changed the American English version to The Sun Also Rises at the behest of his publisher.
(via mental_floss Blog » What 10 Classic Books Were Almost Called)