How pervasive is the period-piece bias? Over the last 20 years, 18 period pieces have won the costume Oscar. The winner in 1993 was The Age of Innocence, an Edith Wharton adaptation in which the lead roles were played by ruffles. During this stretch, other winners included Amadeus, A Room With a View, Dangerous Liaisons, Restoration, Cyrano de Bergerac, and Henry V—period films were a lock.