Movie titles, too. God forbid you get Gibson & Coe's Footprints on the Moon (the 1969 theatrical Apollo 11 documentary) confused with an Italian horror film released in the US under the same title. Or get Edwards & Stone's musical comedy 1776 mixed up with David McCollough's history book.^ That's always a risk when you use a word in moderately common use as a general term for a book title.